Cooperative Diversity Technique in Mobile Communication

International Journal of Electronics and Communication Engineering

© 2015 by SSRG - IJECE Journal

Volume 2 Issue 5

Year of Publication : 2015

Authors : Dr. S.S. Sreeja Mole , S.Sandhya and B. Ganapathy Ram

10.14445/23488549/IJECE-V2I5P115

How to Cite?

Dr. S.S. Sreeja Mole , S.Sandhya and B. Ganapathy Ram, "Cooperative Diversity Technique in Mobile Communication," SSRG International Journal of Electronics and Communication Engineering, vol. 2,  no. 5, pp. 57-61, 2015. Crossref, https://doi.org/10.14445/23488549/IJECE-V2I5P115

Abstract:

To effectively combat multipath fading across multiple protocol layers in mobile networks during transmission of multimedia components we develop an energy efficient transmission protocol called cooperative diversity which involves cooperation among terminals and which is created by antenna sharing and coordinated transmission by several distributed radios. A Cooperative diversity network with a sender, a destination and a third station acting as a relay is analyzed. The channels are modeled containing thermal noise, Rayleigh fading and path loss. After summarizing a model for the wireless channel we enhance the basic arrangement to a system with relay and receiver stations and we present various practical algorithms based on the relaying process that are Amplify and Forward and Decode and Forward. To combine the incoming signals the channel quality should be estimated as well as possible. Information about the average quality shows nice benefits and a rough approximation about the channel quality increases the performance even more. The combining techniques used here are Signal to Noise Ratio Combining and Enhanced Signal to Noise Ratio Combining. The Outage probability of the cooperative communication has been analyzed and compared in this paper.

Keywords:

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