NDLI: A Low Complex Modified Golden Code in a Cooperative Relaying System

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A Low Complex Modified Golden Code in a Cooperative Relaying System

Content Provider	Semantic Scholar
Author	Thilagam, K. Jayanthi, K.
Copyright Year	2014
Abstract	In recent years, cooperative communication is a hot topic of research and it is a powerful physical layer technique to combat fading in wireless relaying scenario. Concerning with the physical layer issues, in this paper it is focussed on with providing a better space time block coding (STBC) scheme and incorporating it in the cooperative relaying nodes to upgrade the system performance. Recently, the golden codes have proven to exhibit a superior performance in a wireless MIMO (Multiple Input Multiple Output) scenario than any other code. However, a serious limitation associated with it is its increased decoding complexity. This paper attempts to resolve this challenge through suitable modification of golden code such that a less complex sphere decoder could be used without much compromising the error rates. The decoder complexity is analyzed through simulation and it proves to exhibit less complexity compared to the conventional (Maximum likelihood) ML decoder. The single relay cooperative STBC consisting of source, relay and destination are considered. The cooperative protocol strategy considered in the relay node is Decode and forward (DF) protocol. The proposed modified golden code with less complex sphere decoder is implemented in the nodes of the cooperative relaying system to achieve better performance in the system. The simulation results have validated the effectiveness of the proposed scheme by offering better BER performance, minimum outage probability and increased spectral efficiency compared to the non cooperative transmission method.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://airccse.org/journal/cnc/6114cnc06.pdf
Language	English
Access Restriction	Open
Subject Keyword	Code Decoder Device Component Direction finding Multi-user MIMO Node - plant part Relay Device Component Search algorithm Simulation Spectral efficiency Sun outage Tree traversal X.690 Ziziphus mauritiana
Content Type	Text
Resource Type	Article

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