12 years 6 months ago
Analog joint source-channel Multiple Description coding scheme over AWGN parallel channels
We propose a low complexity analog joint source channel coding Multiple Description (MD) scheme for transmitting the symbols of a Gaussian source across a pair of independent AWGN...
Aitor Erdozain, Pedro M. Crespo, Baltasar Beferull...
12 years 9 months ago
Successive refinement based Wyner-Ziv video compression
Wyner-Ziv coding enables low complexity video encoding with the motion estimation procedure shifted to the decoder. However, the accuracy of decoder motion estimation is often low...
Xiaopeng Fan, Oscar C. Au, Ngai-Man Cheung, Yan Ch...
61views more  TCOM 2010»
13 years 27 days ago
Variable-rate M-PSK communications without channel amplitude estimation
—Channel estimation at the receiver side is essential to adaptive modulation schemes, prohibiting low complexity systems from using variable rate and/or variable power transmissi...
Athanasios S. Lioumpas, George K. Karagiannidis
137views more  SIGPRO 2010»
13 years 27 days ago
Satellite image compression by post-transforms in the wavelet domain
This paper proposes a novel compression scheme with a tunable complexity-ratedistortion trade-off. As images increase in size and resolution, more efficient compression schemes w...
Xavier Delaunay, Marie Chabert, Vincent Charvillat...
146views more  TWC 2008»
13 years 2 months ago
Synchronization, Channel Estimation, and Equalization in MB-OFDM Systems
Abstract-- This paper addresses preamble-based low complexity synchronization, channel estimation and equalization for Zero-padded (ZP) MB-OFDM based UWB systems. The proposed sync...
Yinghui Li, Hlaing Minn, R. M. A. Rajatheva
89views more  TSP 2008»
13 years 2 months ago
Coordinated Beamforming for the Multiuser MIMO Broadcast Channel With Limited Feedforward
Abstract-- Linear transmit beamforming and receive combining is a low complexity approach for communications in the multiuser multiple-input multiple-output (MIMO) channel. This pa...
Chan-Byoung Chae, David Mazzarese, Takao Inoue, Ro...
99views more  TSP 2008»
13 years 2 months ago
Filter Design With Low Complexity Coefficients
We introduce a heuristic for designing filters that have low complexity coefficients, as measured by the total number of nonzeros digits in the binary or canonic signed digit (CSD)...
Joelle Skaf, Stephen P. Boyd
131views Education» more  CORR 2007»
13 years 2 months ago
Cognitive Medium Access: Exploration, Exploitation and Competition
—This paper considers the design of efficient strategies that allow cognitive users to choose frequency bands to sense and access among multiple bands with unknown parameters. F...
Lifeng Lai, Hesham El Gamal, Hai Jiang, H. Vincent...
123views more  CN 2007»
13 years 2 months ago
Generalized multicast congestion control
Efficient multicast congestion control (MCC) is one of the critical components required to enable the IP multicast deployment over the Internet. Previously proposed MCC schemes ca...
Jiang Li, Murat Yuksel, Xingzhe Fan, Shivkumar Kal...
13 years 8 months ago
Rank, Trace-Norm and Max-Norm
We study the rank, trace-norm and max-norm as complexity measures of matrices, focusing on the problem of fitting a matrix with matrices having low complexity. We present generali...
Nathan Srebro, Adi Shraibman