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Attahiru Sule Alfa
2010 – today
- 2013
[c43]Yalda Farazmand, Attahiru Sule Alfa: Power allocation framework for OFDMA-based relay-enhanced cellular networks. CCNC 2013: 534-539- 2012
- [c42]Telex Magloire Nkouatchah Ngatched, Shuo Dong, Attahiru Sule Alfa, Jun Cai: Performance analysis of cognitive radio networks with channel assembling and imperfect sensing. ICC 2012: 1688-1692
- [c41]Samitha Wijedasa, Attahiru Sule Alfa: An improved channel model for cognitive radio. ICC 2012: 1693-1697
- 2011
- [j65]Yun Han Bae, Attahiru Sule Alfa, Bong Dae Choi: Analysis of a contention-based opportunistic spectrum access under general channel activity model. Perform. Eval. 68(3): 271-289 (2011)
- [j64]Jungong Xue, Attahiru Sule Alfa: Geometric tail of queue length of low-priority customers in a nonpreemptive priority MAP/PH/1 queue. Queueing Syst. 69(1): 45-76 (2011)
- [j63]Telex Magloire Nkouatchah Ngatched, Attahiru Sule Alfa, Jun Cai: Hybrid Linear Programming Based Decoding Algorithm for LDPC Codes. IEEE Transactions on Communications 59(3): 740-749 (2011)
- [j62]Telex Magloire Nkouatchah Ngatched, Attahiru Sule Alfa, Jun Cai: A Weighted Queue-Based Model for Correlated Rayleigh and Rician Fading Channels. IEEE Transactions on Communications 59(11): 3049-3058 (2011)
- [c40]Chamara Devanarayana, Attahiru Sule Alfa: Predictive Channel Access in Cognitive Radio Networks Based on Variable Order Markov Models. GLOBECOM 2011: 1-6
- [c39]Behzad Kasiri, Jun Cai, Attahiru Sule Alfa, Weiwei Wang: A Distributed Cooperative Attack on the Multi-Channel Spectrum Sensing: A Coalitional Game Study. GLOBECOM 2011: 1-5
- [c38]Weiwei Wang, Behzad Kasiri, Jun Cai, Attahiru Sule Alfa: Channel Assignment of Cooperative Spectrum Sensing in Multi-Channel Cognitive Radio Networks. ICC 2011: 1-5
- [c37]Telex Magloire Nkouatchah Ngatched, Attahiru Sule Alfa, Jun Cai: Near Optimum Majority-Logic Based Decoding of Low-Density Parity-Check Codes. ICC 2011: 1-5
- [c36]Telex Magloire Nkouatchah Ngatched, Attahiru Sule Alfa, Jun Cai: Analysis of Cognitive Radio Networks with Channel Aggregation and Imperfect Sensing. ICCCN 2011: 1-6
- [c35]Attahiru Sule Alfa, Vicent Pla, Jorge Martínez-Bauset, Vicente Casares Giner: Discrete Time Analysis of Cognitive Radio Networks with Saturated Source of Secondary Users. Networking Workshops 2011: 3-12
- 2010
- [b1]Attahiru Sule Alfa: Queueing Theory for Telecommunications - Discrete Time Modelling of a Single Node System. Springer 2010, ISBN 978-1-4419-7313-9, pp. I-XIV, 1-238
- [j61]Yun Han Bae, Attahiru Sule Alfa, Bong Dae Choi: Performance Analysis of Modified IEEE 802.11-Based Cognitive Radio Networks. IEEE Communications Letters 14(10): 975-977 (2010)
- [j60]Haitham Abu-Ghazaleh, Attahiru Sule Alfa: Application of Mobility Prediction in Wireless Networks Using Markov Renewal Theory. IEEE T. Vehicular Technology 59(2): 788-802 (2010)
- [j59]Weiwei Wang, Jun Cai, Attahiru Sule Alfa: Distributed Routing Schemes with Accessibility Consideration in Multi-Hop Wireless Networks. IEEE Transactions on Wireless Communications 9(10): 3178-3188 (2010)
- [c34]Telex Magloire Nkouatchah Ngatched, Attahiru Sule Alfa, Jun Cai: An Improvement on the Soft Reliability-Based Iterative Majority-Logic Decoding Algorithm for LDPC Codes. GLOBECOM 2010: 1-5
- [c33]Weiwei Wang, Behzad Kasiri, Jun Cai, Attahiru Sule Alfa: Distributed Cooperative Multi-Channel Spectrum Sensing Based on Dynamic Coalitional Game. GLOBECOM 2010: 1-5
- [c32]Titus O. Adelani, Attahiru Sule Alfa: Hybrid Techniques for Large-Scale IP Traffic Matrix Estimation. ICC 2010: 1-6
- [c31]Telex Magloire Nkouatchah Ngatched, Attahiru Sule Alfa, Jun Cai: Hybrid Decoding of LDPC Codes Based on Interior Point Method. ICC 2010: 1-6
- [c30]Telex Magloire Nkouatchah Ngatched, Attahiru Sule Alfa, Jun Cai: Cooperative sensing with transmit diversity based on randomized STBC in CR networks. IWCMC 2010: 225-230
- [c29]Tae Ok Kim, Attahiru Sule Alfa, Bong Dae Choi: Performance Analysis of a CSMA/CA Based MAC Protocol for Cognitive Radio Networks. VTC Fall 2010: 1-5
- [c28]Md. Mostafizur Rahman, Attahiru Sule Alfa: Model for Call Acceptance Based on Handoff Guarantees for Two Classes of Users. VTC Fall 2010: 1-5
- [c27]Weiwei Wang, Jun Cai, Attahiru Sule Alfa: Balance the Trade-Off between the Accessibility and Performance of Distributed Routing Schemes in Multi-Hop Wireless Networks. VTC Fall 2010: 1-5
- [c26]Telex Magloire Nkouatchah Ngatched, Attahiru Sule Alfa, Jun Cai: Efficient Implementation of Interior Point Decoding Based on Barrier Function for LDPC Codes. WCNC 2010: 1-6
2000 – 2009
- 2009
- [j58]Xiaolan Yang, Attahiru Sule Alfa: A class of multi-server queueing system with server failures. Computers & Industrial Engineering 56(1): 33-43 (2009)
- [j57]Elizabeth M. Jewkes, Attahiru Sule Alfa: A queueing model of delayed product differentiation. European Journal of Operational Research 199(3): 734-743 (2009)
- [j56]Md. Mostafizur Rahman, Attahiru Sule Alfa: Computationally efficient method for analyzing guard channel schemes. Telecommunication Systems 41(1): 1-11 (2009)
- [c25]Weiwei Wang, Jun Cai, Attahiru Sule Alfa: Greedy Sub-Channel Redistribution Routing Scheme in Multi-Hop Wireless OFDMA Networks. GLOBECOM 2009: 1-5
- [c24]
- [c23]Attahiru Sule Alfa, Haitham Abu-Ghazaleh: Discrete-time analysis of packet data discarding in high speed multimedia networks. ISCC 2009: 443-448
- [c22]Weiwei Wang, Jun Cai, Attahiru Sule Alfa: Distributed routing schemes for multi-hop fixed relay networks. IWCMC 2009: 477-482
- [c21]Nuwan Balasuriya, Pradeepa Yahampath, Telex Magloire Nkouatchah Ngatched, Attahiru Sule Alfa: Low-complexity iterative detection and decoding in finite geometry LDPC-coded MIMO systems. PIMRC 2009: 1752-1756
- 2008
- [j55]Attahiru Sule Alfa, Barbara Haas Margolius: Two classes of time-inhomogeneous Markov chains: Analysis of the periodic case. Annals OR 160(1): 121-137 (2008)
- [j54]Md. Mostafizur Rahman, Attahiru Sule Alfa: Models for Call Acceptance Based on Handoff Guarantees. EURASIP J. Wireless Comm. and Networking 2008 (2008)
- [j53]Selvamuthu Dharmaraja, Vaneeta Jindal, Attahiru Sule Alfa: Phase-type models for cellular networks supporting voice, video and data traffic. Mathematical and Computer Modelling 47(11-12): 1167-1180 (2008)
- [j52]Subrata Saha, Attahiru Sule Alfa: Selecting batch size in discrete-time two-phase queuing system. Mathematical and Computer Modelling 47(11-12): 1246-1253 (2008)
- [j51]Attahiru Sule Alfa, Qi-Ming He: Algorithmic analysis of the discrete time GI. Perform. Eval. 65(9): 623-640 (2008)
- [j50]Arash Abadpour, Attahiru Sule Alfa, Jeffrey E. Diamond: Video-on-Demand Network Design and Maintenance Using Fuzzy Optimization. IEEE Transactions on Systems, Man, and Cybernetics, Part B 38(2): 404-420 (2008)
- [j49]Arash Abadpour, Attahiru Sule Alfa, Anthony C. K. Soong: Closed Form Solution for Maximizing the Sum Capacity of Reverse-Link CDMA System with Rate Constraints. IEEE Transactions on Wireless Communications 7(4): 1179-1183 (2008)
- [j48]Jun Cai, Xuemin Shen, Jon W. Mark, Attahiru Sule Alfa: Semi-Distributed User Relaying Algorithm for Amplify-and-Forward Wireless Relay Networks. IEEE Transactions on Wireless Communications 7(4): 1348-1357 (2008)
- [j47]Jun Cai, Attahiru Sule Alfa, Pinyi Ren, Xuemin Shen, Jon W. Mark: Packet level performance analysis in wireless user-relaying networks. IEEE Transactions on Wireless Communications 7(12-2): 5336-5345 (2008)
- [c20]Nasim Arianpoo, Yuxia Lin, Vincent W. S. Wong, Attahiru Sule Alfa: An Analytical Model for Prioritized Contention Access in ECMA-368 MAC Protocol. ICC 2008: 246-251
- [c19]Jinting Wang, Jun Cai, Attahiru Sule Alfa: New Channel Model for Wireless Communications: Finite-State Phase-Type Semi-Markov Channel Model. ICC 2008: 4461-4465
- [c18]Haitham Abu-Ghazaleh, Attahiru Sule Alfa: Mobility Prediction and Spatial-Temporal Traffic Estimation in Wireless Networks. VTC Spring 2008: 2203-2207
- [c17]Nasim Arianpoo, Yuxia Lin, Vincent W. S. Wong, Attahiru Sule Alfa: Analysis of Distributed Reservation Protocol for UWB-Based WPANs with ECMA-368 MAC. WCNC 2008: 1553-1558
- 2007
- [j46]Attahiru Sule Alfa, Jungong Xue: Efficient Computations for the Discrete GI/G/1 System. INFORMS Journal on Computing 19(3): 480-484 (2007)
- [j45]Jingxiang Luo, Attahiru Sule Alfa: Traffic analysis of heterogeneous mobile cellular networks using "wrap-up" cell structure. Telecommunication Systems 34(3-4): 117-132 (2007)
- [c16]
- [c15]Arash Abadpour, Attahiru Sule Alfa, Anthony C. K. Soong: A More Realistic Approach to Information-Theoretic Sum Capacity of Reverse Link CDMA Systems in a Single Cell. ICC 2007: 314-319
- [c14]Arash Abadpour, Attahiru Sule Alfa, Anthony C. K. Soong: Capacity-Share Controlled Information-Theoretic Sum Capacity of Reverse Link Single-Cell CDMA Systems. VTC Spring 2007: 2605-2609
- 2006
- [j44]Attahiru Sule Alfa: Discrete-time analysis of the GI/G/1 system with Bernoulli retrials: An algorithmic approach. Annals OR 141(1): 51-66 (2006)
- [j43]Long Bao Le, Ekram Hossain, Attahiru Sule Alfa: Service differentiation in multirate wireless networks with weighted round-robin scheduling and ARQ-based error control. IEEE Transactions on Communications 54(2): 208-215 (2006)
- [j42]Teerawat Issariyakul, Ekram Hossain, Attahiru Sule Alfa: End-to-End Batch Transmission in a Multihop and Multirate Wireless Network: Latency, Reliability, and Throughput Analysis. IEEE Trans. Mob. Comput. 5(9): 1143-1155 (2006)
- [j41]Afshin Fallahi, Ekram Hossain, Attahiru Sule Alfa: QoS and Energy Trade Off in Distributed Energy-Limited Mesh/Relay Networks: A Queuing Analysis. IEEE Trans. Parallel Distrib. Syst. 17(6): 576-592 (2006)
- [j40]Long Bao Le, Ekram Hossain, Attahiru Sule Alfa: Radio link level performance evaluation in wireless networks using multi-rate transmission with ARQ-based error control. IEEE Transactions on Wireless Communications 5(10): 2647-2653 (2006)
- [j39]Long Bao Le, Ekram Hossain, Attahiru Sule Alfa: Delay Statistics and Throughput Performance for Multi-rate Wireless Networks Under Multiuser Diversity. IEEE Transactions on Wireless Communications 5(11): 3234-3243 (2006)
- [c13]Jun Cai, Xuemin Shen, Jon W. Mark, Attahiru Sule Alfa: Resource Allocation in Wireless Relay Networks. GLOBECOM 2006
- [c12]Md. Mostafizur Rahman, Subrata Saha, Usha Chengan, Attahiru Sule Alfa: IP Traffic Matrix Estimation Methods: Comparisons and Improvements. ICC 2006: 90-96
- [c11]Arash Abadpour, Attahiru Sule Alfa, Anthony C. K. Soong: Closed form solution for QoS: constrained information--theoretic sum capacity of reverse link CDMA systems. Q2SWinet 2006: 123-128
- 2005
- [j38]Wei Li, Attahiru Sule Alfa: Scheduling Stochastic jobs on a repairable machine with general phase type uptime. Math. Meth. of OR 61(3): 399-417 (2005)
- [j37]Benny Van Houdt, Attahiru Sule Alfa: Response time in a tandem queue with blocking, Markovian arrivals and phase-type services. Oper. Res. Lett. 33(4): 373-381 (2005)
- [j36]Lothar Breuer, Attahiru Sule Alfa: An EM algorithm for platoon arrival processes in discrete time. Oper. Res. Lett. 33(5): 535-543 (2005)
- [j35]Mohammad M. Rashid, Attahiru Sule Alfa, Ekram Hossain, Muthucumaru Maheswaran: An Analytical Approach to Providing Controllable Differentiated Quality of Service in Web Servers. IEEE Trans. Parallel Distrib. Syst. 16(11): 1022-1033 (2005)
- [c10]Teerawat Issariyakul, Dusit Niyato, Ekram Hossain, Attahiru Sule Alfa: Exact distribution of access delay in IEEE 802.11 DCF MAC. GLOBECOM 2005: 5
- [c9]Dusit Niyato, Ekram Hossain, Attahiru Sule Alfa: Performance analysis and adaptive call admission control in cellular mobile networks with time-varying traffic. ICC 2005: 3324-3328
- [c8]Long Bao Le, Ekram Hossain, Attahiru Sule Alfa: Queueing analysis and admission control for multi-rate wireless networks with opportunistic scheduling and ARQ-based error control. ICC 2005: 3329-3333
- [c7]Teerawat Issariyakul, Ekram Hossain, Attahiru Sule Alfa: Analysis of latency for reliable end-to-end batch transmission in multi-rate multi-hop wireless networks. ICC 2005: 3494-3498
- [c6]Teerawat Issariyakul, Ekram Hossain, Attahiru Sule Alfa: Markov-based analysis of end-to-end batch transmission in a multi-hop wireless network. ICC 2005: 3505-3509
- 2004
- [j34]Attahiru Sule Alfa, Bin Liu: Performance analysis of a mobile communication network: the tandem case. Computer Communications 27(3): 208-221 (2004)
- [j33]Attahiru Sule Alfa, K. P. Sapna Isotupa: An M/PH/k retrial queue with finite number of sources. Computers & OR 31(9): 1455-1464 (2004)
- [j32]Attahiru Sule Alfa: Markov chain representations of discrete distributions applied to queueing models. Computers & OR 31(14): 2365-2385 (2004)
- [j31]Attahiru Sule Alfa: Loss probability in an overloaded discrete-time GI/G/1/K system with very large K. Oper. Res. Lett. 32(5): 439-447 (2004)
- [j30]I. T. Castro, Attahiru Sule Alfa: Lifetime replacement policy in discrete time for a single unit system. Rel. Eng. & Sys. Safety 84(2): 103-111 (2004)
- [j29]Bin Liu, Attahiru Sule Alfa: A queueing model with time-varying QoS and call dropping for evaluating the performance of CDMA cellular systems. Wireless Communications and Mobile Computing 4(4): 439-447 (2004)
- [c5]Dusit Niyato, Ekram Hossain, Attahiru Sule Alfa: Performance analysis of multi-service wireless cellular networks with MMPP call arrival patterns. GLOBECOM 2004: 3078-3082
- [c4]Long Bao Le, Ekram Hossain, Attahiru Sule Alfa: Queuing analysis for radio link level scheduling in a multi-rate TDMA wireless network. GLOBECOM 2004: 4061-4065
- 2003
- [j28]Attahiru Sule Alfa: Waiting time distribution of the MAP/D/k system in discrete time - a more efficient algorithm. Oper. Res. Lett. 31(3): 263-267 (2003)
- [j27]Attahiru Sule Alfa: An alternative approach for analyzing finite buffer queues in discrete time. Perform. Eval. 53(2): 75-92 (2003)
- [j26]
- [j25]Attahiru Sule Alfa: Combined Elapsed Time and Matrix-Analytic Method for the Discrete Time GI/G/1 and GIX/G/1 Systems. Queueing Syst. 45(1): 5-25 (2003)
- [j24]
- [c3]Selvamuthu Dharmaraja, Attahiru Sule Alfa: Performance Analysis of 3G Wireless Networks Supporting Voice, Data and Video Traffic. International Conference on Wireless Networks 2003: 495-498
- 2002
- [j23]Attahiru Sule Alfa, Jungong Xue, Qiang Ye: Accurate computation of the smallest eigenvalue of a diagonally dominant M-matrix. Math. Comput. 71(237): 217-236 (2002)
- [j22]Eric Xu, Attahiru Sule Alfa: A vacation model for the non-saturated Readers and Writers system with a threshold policy. Perform. Eval. 50(4): 233-244 (2002)
- [j21]Attahiru Sule Alfa, Bin Liu: Performance Analysis of a Mobile Communication Network: Unidirectional Tandem Case with Phase Type Service. Telecommunication Systems 20(3-4): 241-254 (2002)
- [j20]Attahiru Sule Alfa, Wei Li: PCS networks with correlated arrival process and retrial phenomenon. IEEE Transactions on Wireless Communications 1(4): 630-637 (2002)
- [j19]Attahiru Sule Alfa, Wei Li: A Homogeneous PCS network with Markov Call Arrival Process and Phase Type Cell Residence Time. Wireless Networks 8(6): 597-605 (2002)
- [i1]Attahiru Sule Alfa, Lothar Breuer: An EM Algorithm for Platoon Arrival Processes in Discrete Time. Universität Trier, Mathematik/Informatik, Forschungsbericht 02-07 (2002)
- 2001
- [j18]Attahiru Sule Alfa, Jungong Xue, Qiang Ye: Perturbation Theory for the Asymptotic Decay Rates in the Queues with Markovian Arrival Process and/or Markovian Service Process - Correction. Queueing Syst. 39(1): 5-6 (2001)
- 2000
- [j17]Attahiru Sule Alfa, Wei Wayne Li: Optimal (N, T)-policy for M/G/1 system with cost structures. Perform. Eval. 42(4): 265-277 (2000)
- [j16]Jeffrey E. Diamond, Attahiru Sule Alfa: On approximating higher order MAPs with MAPs of order two. Queueing Syst. 34(1-4): 269-288 (2000)
- [j15]Attahiru Sule Alfa, Jungong Xue, Qiang Ye: Perturbation Theory for the Asymptotic Decay Rates in the Queues with Markovian Arrival Process and/or Markovian Service Process. Queueing Syst. 36(4): 287-301 (2000)
- [j14]Attahiru Sule Alfa, Yu-Fei Shi: A discrete time-limited vacation model for the fair share scheduler. Telecommunication Systems 13(2-4): 167-197 (2000)
1990 – 1999
- 1999
- [j13]Jeffrey E. Diamond, Attahiru Sule Alfa: Approximation method for M/PH/1 retrial queues with phase type inter-retrial times. European Journal of Operational Research 113(3): 620-631 (1999)
- [j12]Imed Frigui, Attahiru Sule Alfa: Analysis of a discrete time table polling system with MAP input and time-limited service discipline. Telecommunication Systems 12(1): 51-77 (1999)
- 1998
- [j11]Imed Frigui, Attahiru Sule Alfa: Analysis of a time-limited polling system. Computer Communications 21(6): 558-571 (1998)
- [j10]Jeffrey E. Diamond, Attahiru Sule Alfa: Matrix Analytical Model of an ATM Output Buffer with Self-Similar Traffic. Perform. Eval. 31(3-4): 201-210 (1998)
- [j9]Attahiru Sule Alfa: Discrete time analysis of \mathrm{MAP}/\mathrm{PH}/1 vacation queue with gated time-limited service. Queueing Syst. 29(1): 35-54 (1998)
- [j8]Qi-Ming He, Attahiru Sule Alfa: The MMAP[K]/PH[K]/1 queues with a last-come-first-served preemptive service discipline. Queueing Syst. 29(2-4): 269-291 (1998)
- [j7]Randall G. Martens, Attahiru Sule Alfa: A task-oriented priority queue for telephone switch design: with modified FCFS and forking. Telecommunication Systems 9(1): 97-112 (1998)
- [c2]Wei Wayne Li, Attahiru Sule Alfa: Actual Holding Times for Calls in a PCS Network. ICCCN 1998: 881-885
- 1997
- [j6]Imed Frigui, Richard Stone, Attahiru Sule Alfa: Message delay for a priority-based automatic meter reading network. Computer Communications 20(1): 38-47 (1997)
- [j5]Darryl Wayne Dormuth, Attahiru Sule Alfa: Two finite-difference methods for solving MAP(t)/PH(t)/1/K queueing models. Queueing Syst. 27(1-2): 55-78 (1997)
- [c1]Imed Frigui, Attahiru Sule Alfa: Three buffer-allocation schemes for a MAP/PH/1/K priority queue with vacations and an application to ATM networks. Broadband Networking Technologies 1997: 234-247
- 1995
- [j4]Yiqiang Quennel Zhao, Attahiru Sule Alfa: Performance analysis of a telephone system with both patient and impatient customers. Telecommunication Systems 4(1): 201-215 (1995)
- [j3]Attahiru Sule Alfa, Marcel F. Neuts: Modelling Vehicular Traffic Using the Discrete Time Markovian Arrival Process. Transportation Science 29(2): 109-117 (1995)
- 1994
- [j2]Elias Yannopoulos, Attahiru Sule Alfa: An Approximation Method for Queues in Series with Blocking. Perform. Eval. 20(4): 373-390 (1994)
- 1991
- [j1]Attahiru Sule Alfa, Mingyuan Chen: Approximating Queue Lengths in M(t)/G/1 Queue Using the Maximum Entropy Principle. Acta Inf. 28(8): 801-815 (1991)
Coauthor Index
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last updated on 2013-05-08 22:56 CEST by the dblp team