Tor A. Ramstad

Emrah Akyol, Kumar Viswanatha, Kenneth Rose, Tor A. Ramstad: On Zero Delay Source-Channel Coding. CoRR abs/1302.3660 (2013)

Hieu T. Nguyen, Tor A. Ramstad, Ilangko Balasingham: Optimal and robust communication for a uniform source. IET Communications 6(6): 577-586 (2012)

Babak Moussakhani, John T. Flåm, Stig Stôa, Ilangko Balasingham, Tor A. Ramstad: On localisation accuracy inside the human abdomen region. IET Wireless Sensor Systems 2(1): 9-15 (2012)

Pål Anders Floor, Anna N. Kim, Niklas Wernersson, Tor A. Ramstad, Mikael Skoglund, Ilangko Balasingham: Zero-Delay Joint Source-Channel Coding for a Bivariate Gaussian on a Gaussian MAC. IEEE Transactions on Communications 60(10): 3091-3102 (2012)

Hieu T. Nguyen, Tor A. Ramstad, Ilangko Balasingham: Coded pulse position modulation communication system over the human abdominal channel for medical wireless body area networks. PIMRC 2012: 1992-1996

Hieu T. Nguyen, Tor A. Ramstad, Ilangko Balasingham: A Robust Communication System Based on Joint-Source Channel Coding for a Uniform Source. VTC Fall 2012: 1-6

Hieu T. Nguyen, Tor A. Ramstad, Ilangko Balasingham: Wireless sensor communication system based on direct-sum source coder. IET Wireless Sensor Systems 1(2): 96-104 (2011)

Anna N. Kim, Pål Anders Floor, Tor A. Ramstad, Ilangko Balasingham: Delay-Free Joint Source-Channel Coding for Gaussian Network of Multiple Sensors. ICC 2011: 1-6

Pål Anders Floor, Anna N. Kim, Niklas Wernersson, Tor A. Ramstad, Mikael Skoglund, Ilangko Balasingham: On Transmission of Two Correlated Gaussian Memoryless Sources over a Gaussian MAC using Delay-Free Mappings. CoRR abs/1101.5716 (2011)

Emrah Akyol, Kenneth Rose, Tor A. Ramstad: Optimized Analog Mappings for Distributed Source-Channel Coding. DCC 2010: 159-168

Anna N. Kim, Tor A. Ramstad: Bandwidth Expansion in a Simple Gaussian Sensor Network Using Feedback. DCC 2010: 259-268

Hieu T. Nguyen, Ilangko Balasingham, Tor A. Ramstad, Pål Anders Floor: Limited Feedback Transmission Scheme for Wireless Sensor Networks. ICC 2010: 1-6

Babak Moussakhani, Ilangko Balasingham, Tor A. Ramstad: Distributed Signal Estimation Using Binary Sensors with Multiple Thresholds. VTC Spring 2010: 1-5

Fredrik Hekland, Pål Anders Floor, Tor A. Ramstad: Shannon-kotel-nikov mappings in joint source-channel coding. IEEE Transactions on Communications 57(1): 94-105 (2009)

Niklas Wernersson, Mikael Skoglund, Tor A. Ramstad: Polynomial based analog source-channel codes - [transactions papers]. IEEE Transactions on Communications 57(9): 2600-2606 (2009)

Minh-Long Pham, Tor A. Ramstad, Ilangko Balasingham: Poster abstract: Ultra wideband biomedical wireless sensor neworks using wavelet lifting for image transmission. IPSN 2009: 385-386

Minh-Long Pham, Tor A. Ramstad, Ilangko Balasingham: Minimizing Power Using Large Bandwidth PPM Transmission and DPCM Source Coding. VTC Spring 2009

Pål Anders Floor, Tor A. Ramstad: On the Analysis of Shannon-Kotel'nikov Mappings. CoRR abs/0904.1538 (2009)

Ilangko Balasingham, Tor A. Ramstad: Are the Wavelet Transforms the Best Filter Banks for Image Compression? EURASIP J. Image and Video Processing 2008 (2008)

Anna N. Kim, Tor A. Ramstad: Improving the Rate-Distortion Performance of DPCM Using Multirate Processing With Application in Low-Rate Image Coding. IEEE Transactions on Signal Processing 55(10): 4958-4968 (2007)

Stig Stôa, Ilangko Balasingham, Tor A. Ramstad: Data Throughput Optimization in the IEEE 802.15.4 Medical Sensor Networks. ISCAS 2007: 1361-1364

Pål Anders Floor, Tor A. Ramstad: Noise Immunity for 1: N and M: 1 Nonlinear Mappings for Source-Channel Coding. DCC 2006: 446

Greg H. Håkonsen, Tor A. Ramstad: Image Transmission Over Flat Fading Channels Using Joint Source Channel Coding. DCC 2006: 452

Fredrik Hekland, Tor A. Ramstad: Digitising the 2: 1 Shannon Mappings for Transport over Heterogeneous Networks. DCC 2006: 455

Greg H. Håkonsen, Tor A. Ramstad, Anders Gjendemsjø: Image Transmission With Adaptive Power and Rate Allocation Over Flat Fading Channels Using Joint Source Channel Coding. WINSYS 2006: 158-163

Fredrik Hekland, Geir E. Øien, Tor A. Ramstad: Using 2: 1 Shannon Mapping for Joint Source-Channel Coding. DCC 2005: 223-232

Anna N. Kim, Stefania Sesia, Tor A. Ramstad, Giuseppe Caire: Combined error protection and compression using turbo codes for error resilient image transmission. ICIP (3) 2005: 912-915

Anna N. Kim, Tor A. Ramstad: Practical low bit rate predictive image coder using multi-rate processing and adaptive entropy coding. ICIP 2004: 3181-3184

Are Hjørungnes, Helge Coward, Tor A. Ramstad: Minimum Mean Square Error Fir Filter Banks with Arbitrary Filter Lengths. ICIP (1) 1999: 619-623

Ingil Sundsbo, Tor A. Ramstad: Synthesis filterbank with low hardware complexity for subband image coding. IEEE Transactions on Image Processing 7(12): 1717-1724 (1998)

T. Røsten, Tor A. Ramstad: Kirchhoff Migration of 2-D Post-Stack Seismic Data after Subband Decomposition. ICIP (3) 1998: 353-357

Ilangko Balasingham, Michael D. Adams, Tor A. Ramstad, Faouzi Kossentini, Helge Coward, Andrew Perkis, Geir E. Øien: Performance Evaluation of Different Filter Banks in the JPEG-2000 Baseline System. ICIP (2) 1998: 569-573

Ilangko Balasingham, Arild Fuldseth, Tor A. Ramstad: On Optimal Tiling of the Spectrum in Subband Image Compression. ICIP (1) 1997: 49-52

Arild Fuldseth, Tor A. Ramstad: Channel-optimized subband video coding for channels with a power constraint. ICIP (3) 1997: 428-431

Arild Fuldseth, Ilangko Balasingham, Tor A. Ramstad: Efficient Coding of the Classification Table in Low Bit Rate Subband Image Coding by Use of Hierarchical Enumeration. ICIP (2) 1997: 649-652

Ilangko Balasingham, Tor A. Ramstad: Optimized perfect reconstruction tree-structured filter banks for image coding. ICIP (1) 1996: 585-588

Arild Fuldseth, Tor A. Ramstad: Combined video coding and multilevel modulation. ICIP (1) 1996: 941-944

Sven Ole Aase, Tor A. Ramstad: On the optimality of nonunitary filter banks in subband coders. IEEE Transactions on Image Processing 4(12): 1585-1591 (1995)

Arild Fuldseth, Tor A. Ramstad: A new error criterion for block based motion estimation. ICIP (3) 1995: 188-191

John M. Lervik, Tor A. Ramstad: Optimal Entropy Coding in Image Subband Coders. ICIP (2) 1994: 390-394

Bernt Ribbum, Andrew Perkis, Kuldip K. Paliwal, Tor A. Ramstad: Performance study of stochastic speech coders. Speech Communication 10(3): 277-301 (1991)