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» Spread Codes and Spread Decoding in Network Coding
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DIALM
2004
ACM
117views Algorithms» more  DIALM 2004»
15 years 3 months ago
OVSF-CDMA code assignment in wireless ad hoc networks
Orthogonal Variable Spreading Factor (OVSF) CDMA code consists of an infinite number of codewords with variable rates, in contrast to the conventional orthogonal fixed-spreading...
Peng-Jun Wan, Xiang-Yang Li, Ophir Frieder
74
Voted
TIT
2002
75views more  TIT 2002»
14 years 9 months ago
Iterative multiuser joint decoding: Unified framework and asymptotic analysis
We present a framework for iterative multiuser joint decoding of code-division multiple-access (CDMA) signals, based on the factor-graph representation and on the sum-product algor...
Joseph Boutros, Giuseppe Caire
GLOBECOM
2009
IEEE
15 years 4 months ago
How Much Training Is Needed for Iterative Multiuser Detection and Decoding?
Abstract—This paper studies large randomly spread directsequence code-division multiple-access system operating over a block fading multipath channel. Channel knowledge is obtain...
Mikko Vehkaperä, Keigo Takeuchi, Ralf R. M&uu...
GLOBECOM
2009
IEEE
15 years 1 months ago
Multi-User Cooperative Communications with Relay-Coding for Uplink IMT-Advanced 4G Systems
Adoption of relay stations has been commonly accepted as a key technique for future IMTadvanced 4G systems to improve the link performance. While study in relay systems is often c...
Lei Cao, Jinyun Zhang, Norio Kanno
VTC
2006
IEEE
160views Communications» more  VTC 2006»
15 years 3 months ago
Chip-interleaved Multi-rate CDMA with 2-dimensional OVSF Spreading
—Chip interleaving technique has been proposed for DS-CDMA to eliminate the multiple-access interference (MAI). In this paper, we develop this technique to provide the single- or...
Le Liu, Fumiyuki Adachi