Analyzing bit error rate of relay sensors selection in wireless cooperative communication systems

Ahmed Allawy Alawady,Ahmed Alkhayyat,Mohammed Ahmed Jubair,Salama A Mostafa,Mustafa Hamid Hassan

doi:10.11591/eei.v10i1.2492

Abstract

Cooperative communication systems, which make use of the intermediate relays between the transmitter and the receiver, have been employed as an effective technique to combat the channel fading and to enhance system performance. Cooperative systems have some drawbacks such as high latency and may diversity order not guaranteed. To alleviate the negative effects of these factors, the relay selection protocol is employed in cooperative communication systems to increase overall cooperative system performance. Relay selection in the cooperative systems enables the source to cooperate with the single relay node rather than multiple relay nodes which guaranteed the diversity order.

Highlights

Cooperative networks (CNs) have been grown and gain much attention recently as a new model of the communication system that makes intermediate nodes help the source to retransmitted its data if the source to destination link (SDL) failed due to error propagation or the relay nodes retransmit the source data in addition transmitted source data and the destination combine them to achieve diversity gain
To achieve the diversity gain through cooperation, the source broadcast the data to the relay node and the destination, and either the relay nodes process the data that received from the source before retransmitting to the destination, or the relay nodes doesn’t process the data but directly retransmit to the destination
Inclusive work on CNs have been inspected as the relay nodes repeat the data to the destination and it receives the data from the relay nodes only has been considered in [1,2,3], or the destination receive the data from the source and relay nodes has been considered in [4,5,6,7]

Summary

Introduction

Cooperative networks (CNs) have been grown and gain much attention recently as a new model of the communication system that makes intermediate nodes help the source to retransmitted its data if the source to destination link (SDL) failed due to error propagation or the relay nodes retransmit the source data in addition transmitted source data and the destination combine them to achieve diversity gain. The proactive BRS protocol in selecting the relay node before the source broadcasting (transmitting).

Results

Conclusion