Proceedings ArticleDOI
Cooperation diversity through coding
T.E. Hunter,Aria Nosratinia +1 more
- pp 220
TLDR
A new user cooperation scheme for wireless communications in which cooperation with existing channel coding methods is proposed, which shows a significant improvement in the BER for both users, even when the channel between them is poor, or when they have significantly different channel qualities to the base station.Abstract:
We propose a new user cooperation scheme for wireless communications in which we combine cooperation with existing channel coding methods. Simulation results show a significant improvement in the BER for both users, even when the channel between them is poor, or when they have significantly different channel qualities to the base station.read more
Citations
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Journal ArticleDOI
Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks
J.N. Laneman,Gregory W. Wornell +1 more
TL;DR: This work develops and analyzes space-time coded cooperative diversity protocols for combating multipath fading across multiple protocol layers in a wireless network and demonstrates that these protocols achieve full spatial diversity in the number of cooperating terminals, not just theNumber of decoding relays, and can be used effectively for higher spectral efficiencies than repetition-based schemes.
Journal ArticleDOI
A simple Cooperative diversity method based on network path selection
TL;DR: A novel scheme that first selects the best relay from a set of M available relays and then uses this "best" relay for cooperation between the source and the destination and achieves the same diversity-multiplexing tradeoff as achieved by more complex protocols.
Journal ArticleDOI
Cooperative communication in wireless networks
TL;DR: An overview of the developments in cooperative communication, a new class of methods called cooperative communication has been proposed that enables single-antenna mobiles in a multi-user environment to share their antennas and generate a virtual multiple-antenn transmitter that allows them to achieve transmit diversity.
Journal ArticleDOI
Cooperative strategies and capacity theorems for relay networks
TL;DR: The capacity results generalize broadly, including to multiantenna transmission with Rayleigh fading, single-bounce fading, certain quasi-static fading problems, cases where partial channel knowledge is available at the transmitters, and cases where local user cooperation is permitted.
Journal ArticleDOI
Fading relay channels: performance limits and space-time signal design
TL;DR: This paper examines the basic building block of cooperative diversity systems, a simple fading relay channel where the source, destination, and relay terminals are each equipped with single antenna transceivers and shows that space-time codes designed for the case of colocated multiantenna channels can be used to realize cooperative diversity provided that appropriate power control is employed.
References
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Journal ArticleDOI
Rate-compatible punctured convolutional codes (RCPC codes) and their applications
TL;DR: In this article, the concept of punctured convolutional codes is extended by punctuating a low-rate 1/N code periodically with period P to obtain a family of codes with rate P/(P+l), where l can be varied between 1 and (N-1)P. This allows transmission of incremental redundancy in ARQ/FEC (automatic repeat request/forward error correction) schemes and continuous rate variation to change from low to high error protection within a data frame.
Journal Article
Rate-compatible punctured convolutional codes (RCPC codes) and their applications
TL;DR: The concept of punctured convolutional codes is extended by punctuating a low-rate 1/N code periodically with period P to obtain a family of codes with rate P/(P+l), where l can be varied between 1 and (N-1)P.
Proceedings ArticleDOI
An efficient protocol for realizing cooperative diversity in wireless networks
TL;DR: Two variants of an energy-efficient cooperative diversity protocol are developed that combats fading induced by multipath propagation in wireless networks and can lead to reduced battery drain, longer network lifetime, and improved network performance in terms of, e.g., capacity.