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VTC
2008
IEEE
16 years 26 days ago
Construction of Regular Quasi-Cyclic Protograph LDPC codes based on Vandermonde Matrices
Abstract— In this contribution, we investigate the attainable performance of quasi-cyclic (QC) protograph Low-Density Parity-Check (LDPC) codes for transmission over both Additiv...
Nicholas Bonello, Sheng Chen, Lajos Hanzo
ICC
2007
IEEE
110views Communications» more  ICC 2007»
16 years 25 days ago
Quadratic-Congruence Carrier-Hopping Prime Code for Multicode-Keying Optical CDMA
—In this paper, we study a new family of carrier-hopping prime codes (CHPCs), so-called quadraticcongruence CHPC (QC-CHPC), with expanded code cardinality by relaxing the maximum...
Wing C. Kwong, Cheng-Yuan Chang, Hung-Ta Chen, Guu...
ICC
2007
IEEE
121views Communications» more  ICC 2007»
16 years 25 days ago
Full-Rate Real-Symbol-Decodable O-STBC with Offset QAM for Four Transmit Antennas
Abstract—A new 4 × 1 scheme of transmitting two real orthogonal space-time block codes (O-STBC) on the I- and Q-channels with pulse-shaped offset QAM is proposed. This scheme ac...
Kun Zhong, Boon Chong Ng, Yong Liang Guan
ICC
2007
IEEE
140views Communications» more  ICC 2007»
16 years 25 days ago
Performance Analysis of Adaptively-Routed Wormhole-Switched Networks with Finite Buffers
—The use of adaptively-routed wormhole switched k-ary n-cubes has been motivated by the high path diversity provided by the rich topology of this family of interconnection networ...
Nasser Alzeidi, Mohamed Ould-Khaoua, Lewis M. Mack...
IPPS
2007
IEEE
16 years 24 days ago
Low-Overhead LogGP Parameter Assessment for Modern Interconnection Networks
Network performance measurement and prediction is very important to predict the running time of high performance computing applications. The LogP model family has been proven to b...
Torsten Hoefler, Andre Lichei, Wolfgang Rehm