Hierarchical Constellation Based Adaptive Relay Scheme in Multi-Hop Networks

In order to improve cell capacity in multihop networks, we propose a novel adaptive relay scheme based on hierarchical constellations in which a symbol consists of multiple bits with varying degrees of robustness against channel errors. These bits are transferred to multiple users, such as relays an...

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Bibliographic Details
Published in:IEEE communications letters 2007-03, Vol.11 (3), p.225-227
Main Authors: LEE, Ki-Ho, CHO, Dong-Ho
Format: Article
Language:English
Subjects:
Antennas
Applied sciences
AWGN
Bit error rate
Broadcasting
Channels
Constellations
Decoding
Diversity methods
Diversity reception
Errors
Exact sciences and technology
Feedback
Networks
Protocols
Radiocommunications
Relay
Relays
Robustness
Spread spectrum communication
Symbols
Telecommunications
Telecommunications and information theory
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Summary:In order to improve cell capacity in multihop networks, we propose a novel adaptive relay scheme based on hierarchical constellations in which a symbol consists of multiple bits with varying degrees of robustness against channel errors. These bits are transferred to multiple users, such as relays and destinations, adaptively according to the users channel conditions and this adaptive transfer enables the capacity of multi-hop networks to be unproved
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2007.061792