Performance Analysis of a Single Relay Cooperative Communication System with Different Diversity Protocol
BANGLADESH RESEARCH PUBLICATIONS JOURNAL ISSN: 1998-2003, Volume: 7, Issue: 4, Page: 403-411, November - December, 2012
PERFORMANCE ANALYSIS OF A SINGLE RELAY COOPERATIVE COMMUNICATION SYSTEM WITH DIFFERENT DIVERSITY PROTOCOL
Md. Mahabub Hossain1*, Md. Dulal Haque1, Md. Mominul Islam2, Md. Raji All Noor Islam1 and Mohammad Minhazur Rahman1
Md. Mahabub Hossain, Md. Dulal Haque, Md. Mominul Islam, Md. Raji All Noor Islam and Mohammad Minhazur Rahman (2012). Performance Analysis of a Single Relay Cooperative Communication System with Different Diversity Protocol. Bangladesh Res. Pub. J. 7(4): 403-411. Retrieve from http://www.bdresearchpublications.com/admin/journal/upload/09362/09362.pdf
Abstract
In this paper the performance of a cooperative communication system is analyzed under different diversity protocol. An enhanced four-node cooperative system, having a source, a destination and two serially arranged stations acting as relays is designed and analyzed while a threenode ad-hoc network with a single relay station has been considered as a reference model. Two retransmission protocols amplify and forward (AAF) and decode and forward (DAF) are implemented at the relays and four diversity combining techniques such as equal ratio combining (ERC),fixed ratio combining (FRC), signal to noise ratio combining (SNRC) and equal signal to noise ratio combining (ESNRC) are used at the destination for each protocol. The performance of single relay system is compared with the performance of direct transmission and transmission through single relay system. single-relay cooperative system offers better performance than that of direct transmission irrespective of the implementation of retransmission protocols and diversity combining techniques.
Key words: wireless networks, cooperative diversity, relay, diversity protocols, combining methods, fading, path loss.
Introduction
During transmission over wireless channel the signal quality suffers severely from a bad
PERFORMANCE ANALYSIS OF A SINGLE RELAY COOPERATIVE COMMUNICATION SYSTEM WITH DIFFERENT DIVERSITY PROTOCOL
Md. Mahabub Hossain1*, Md. Dulal Haque1, Md. Mominul Islam2, Md. Raji All Noor Islam1 and Mohammad Minhazur Rahman1
Md. Mahabub Hossain, Md. Dulal Haque, Md. Mominul Islam, Md. Raji All Noor Islam and Mohammad Minhazur Rahman (2012). Performance Analysis of a Single Relay Cooperative Communication System with Different Diversity Protocol. Bangladesh Res. Pub. J. 7(4): 403-411. Retrieve from http://www.bdresearchpublications.com/admin/journal/upload/09362/09362.pdf
Abstract
In this paper the performance of a cooperative communication system is analyzed under different diversity protocol. An enhanced four-node cooperative system, having a source, a destination and two serially arranged stations acting as relays is designed and analyzed while a threenode ad-hoc network with a single relay station has been considered as a reference model. Two retransmission protocols amplify and forward (AAF) and decode and forward (DAF) are implemented at the relays and four diversity combining techniques such as equal ratio combining (ERC),fixed ratio combining (FRC), signal to noise ratio combining (SNRC) and equal signal to noise ratio combining (ESNRC) are used at the destination for each protocol. The performance of single relay system is compared with the performance of direct transmission and transmission through single relay system. single-relay cooperative system offers better performance than that of direct transmission irrespective of the implementation of retransmission protocols and diversity combining techniques.
Key words: wireless networks, cooperative diversity, relay, diversity protocols, combining methods, fading, path loss.
Introduction
During transmission over wireless channel the signal quality suffers severely from a bad
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