Journal ArticleDOI
Cross-Layer Cooperative MAC Protocol in Distributed Wireless Networks
TLDR
Simulation results show that the proposed approach can effectively exploit beneficial cooperation, thereby improving system performance and shedding some light on the tradeoff between multi-user diversity gain at the physical layer and the helper contention overhead at the MAC layer.Abstract:
In this paper, we study medium access control (MAC) protocol design for distributed cooperative wireless networks. We focus on beneficial node cooperation by addressing two fundamental issues of cooperative communications, namely when to cooperate and whom to cooperate with, from a cross-layer protocol design perspective. In the protocol design, taking account of protocol overhead we explore a concept of cooperation region, whereby beneficial cooperative transmissions can be identified. We show that a rate allocation in the cooperation region provides higher link utilization than in a non-cooperation region. To increase network throughput, we propose an optimal grouping strategy for efficient helper node selection, and devise a greedy algorithm for MAC protocol refinement. Analysis of a successful transmission probability with cooperative or direct transmission is presented. Simulation results show that the proposed approach can effectively exploit beneficial cooperation, thereby improving system performance. Further, analytical and simulation results shed some light on the tradeoff between multi-user diversity gain at the physical layer and the helper contention overhead at the MAC layer.read more
Citations
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Journal ArticleDOI
Cooperation in wireless communication networks
Weihua Zhuang,Muhammad Ismail +1 more
TL;DR: Challenging issues which arise at different layers of the network protocol stack are discussed, with an emphasis on the medium access control, network, and transport layers.
Journal ArticleDOI
CAH-MAC: Cooperative ADHOC MAC for Vehicular Networks
Sailesh Bharati,Weihua Zhuang +1 more
TL;DR: This paper presents a cooperative scheme for medium access control (MAC) in VANETs, referred to as Cooperative ADHOC MAC (CAH-MAC), and shows that this scheme increases the probability of successful packet transmission and hence the network throughput in various networking scenarios.
Journal ArticleDOI
Survey on cooperative medium access control protocols
Peijian Ju,Wei Song,Dizhi Zhou +2 more
TL;DR: The authors present a comprehensive survey on the mainstream cooperative MAC protocols in the literature and classify the well-known proposals according to how they address two fundamental questions for user cooperation, that is, when to cooperation and whom to cooperate with.
Journal ArticleDOI
Network Coding Aware Cooperative MAC Protocol for Wireless Ad Hoc Networks
Xiaoyan Wang,Jie Li +1 more
TL;DR: A novel network coding aware cooperative MAC protocol, namely NCAC-MAC, for wireless ad hoc networks is proposed, which can improve the network performance under general circumstances comparing with two benchmarks.
Journal ArticleDOI
Improving the Network Lifetime of MANETs through Cooperative MAC Protocol Design
Xiaoyan Wang,Jie Li +1 more
TL;DR: A novel cross-layer distributed energy-adaptive location-based CMAC protocol for Mobile Ad-hoc NETworks (MANETs), which significantly prolongs the network lifetime under various circumstances even for high circuitry energy consumption cases by comprehensive simulation study.
References
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