scholarly journals Joint Next-Hop/Relay Selection for Distributive Multihop Cooperative Networks

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Ahmed Alkhayyat
Keyword(s):  
Spectral Efficiency ◽  
Relay Selection ◽  
Relay Node ◽  
Cooperative Networks ◽  
Channel Fading ◽  
Relay Nodes ◽  
Effective Technique ◽  
Node Selection ◽  
Relay Node Selection ◽  
Selection For

Cooperative networks that use adjacent nodes to relay hearing data are employed as an effective technique to deal with channel fading, thereby enhancing the network performances. Next-hop and relay nodes selection schemes determine the optimal next-hop node toward the destination and relay node between the source and the optimal next-hop and/or destination. Offering joint next-hop and relay node selection in distributive multihop cooperative networks will enable the source to select the optimal next-hop node and relay node that can improve the system performance. In this paper, we propose a joint next-hop node and relay node selection (JNRS) protocol for wireless distributive multihop cooperative networks. The goal of JNRS is to reduce the spectral efficiency loss and outage probability. Analysis results show that JNRS can enhance the cooperative networks performance under general conditions compared to cooperative networks without the JNRS protocol.

scholarly journals A Survey on Relay Selection in Cooperative Device-to-Device (D2D) Communication in 5G Cellular Networks

2017 ◽  
Author(s):  
Shamganth K ◽  
Said Shafi Abdullah Al-Shabibia
Keyword(s):  
Cellular Networks ◽  
Spectral Efficiency ◽  
Relay Selection ◽  
Relay Node ◽  
Cooperative Networks ◽  
Vital Role ◽  
D2d Communication ◽  
Destination Node ◽  
D2d Communications ◽  
Device To Device

Device-to-device (D2D) communications underlayed to a cellular infrastructure has recently been proposed to increase spectrum and energy efficiency. Relay selection plays a vital role in cooperative networks. In D2D communication, if the chosen relay is not the best relay, then the whole communication will not be successful from source node to destination node. Also to choose the optimal relays, if more feedback and time delay exists between the source nodes and relay node then it leads to degradation of spectral efficiency.  A survey on the relay selection techniques used with D2D communications and the challenges and design issues associated with the integration of D2D in 5G cellular network is presented.

Triggering and Relay Node Selection for Self-User Relaying

2015 ◽  
Vol 19 (11) ◽  
pp. 2029-2032
Author(s):  
Chie Ming Chou ◽  
Ching-Yao Huang
Keyword(s):  
Relay Node ◽  
Node Selection ◽  
Relay Node Selection ◽  
Selection For

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.

A framework for mobile relay node selection for serving outdoor cell edge users

2020 ◽  
Vol 178 ◽  
pp. 107359
Author(s):  
Khaled Sarieddine ◽  
Malak Charaf ◽  
Mohammad Ayad ◽  
Hassan Artail
Keyword(s):  
Relay Node ◽  
Node Selection ◽  
Cell Edge ◽  
Relay Node Selection ◽  
Selection For ◽  
Mobile Relay

scholarly journals Joint Optimization of Session Grouping and Relay Node Selection for Network-Coded Cooperative Communications

2014 ◽  
Vol 13 (9) ◽  
pp. 2028-2041 ◽  
Author(s):  
Sushant Sharma ◽  
Yi Shi ◽  
Y. Thomas Hou ◽  
Hanif D. Sherali ◽  
Sastry Kompella
Keyword(s):  
Cooperative Communications ◽  
Relay Node ◽  
Joint Optimization ◽  
Node Selection ◽  
Relay Node Selection ◽  
Selection For
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