scholarly journals Relay selection in cooperative communication systems over continuous time-varying fading channel

2017 ◽  
Vol 30 (1) ◽  
pp. 391-398 ◽  
Author(s):  
Ke Geng ◽  
Qiang Gao ◽  
Li Fei ◽  
Huagang Xiong
Keyword(s):  
Cooperative Communication ◽  
Continuous Time ◽  
Fading Channel ◽  
Communication Systems ◽  
Relay Selection ◽  
Time Varying

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

2021 ◽  
Vol 10 (1) ◽  
pp. 216-223
Author(s):  
Ahmed Allawy Alawady ◽  
Ahmed Alkhayyat ◽  
Mohammed Ahmed Jubair ◽  
Mustafa Hamid Hassan ◽  
Salama A. Mostafa
Keyword(s):  
Cooperative Communication ◽  
System Performance ◽  
Communication Systems ◽  
Relay Selection ◽  
Relay Node ◽  
Cooperative Systems ◽  
Diversity Order ◽  
Channel Fading ◽  
Negative Effects ◽  
Relay Nodes

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.

Relay Selection Scheme for Cooperative Communication Systems in Fixed Decode-and-Forward Mode

2014 ◽  
Vol 6 (2) ◽  
pp. 68-77
Author(s):  
Jyh-Horng Wen ◽  
Jheng-Sian Li ◽  
Hsiang-Shan Hou ◽  
Cheng-Ying Yang
Keyword(s):  
Cooperative Communication ◽  
System Performance ◽  
Communication Systems ◽  
Relay Selection ◽  
Spatial Diversity ◽  
Search Method ◽  
Exhaustive Search ◽  
Decode And Forward ◽  
Selection Scheme ◽  
Relay Stations

Cooperative system is a tendency in the future communications because it provides a spatial diversity to improve the system performance. This work considers the cooperative communication systems in Fixed DF Mode. The scenario includes multiple source stations, multiple relay stations and multiple destination stations. For the whole system, the maximum throughput approaching is the major purpose. Hence, to select the relay stations for signal transmission could be the important scheme to achieve the optimal system performance. With the exhaustive search method, easily to realize, the optimal selection scheme could be found with a highly complicated calculation. In order to reduce the computational complexity, a relay selection scheme is proposed. With different situations of the communication systems, the performances evaluations obtained with both the proposed algorithm and the exhaustive search method are given for comparison. It shows the proposed algorithm could provide a solution approaches to the optimal one. It could apply the proposed scheme to the practical without a delay because of long-time calculation.

Sign in / Sign up

Export Citation Format

Share Document