Selection diversity forwarding in a multihop packet radio network with fading channel and capture
ACM SIGMOBILE Mobile Computing and Communications Review
Goodput Analysis and Link Adaptation for IEEE 802.11a Wireless LANs
IEEE Transactions on Mobile Computing
QoS provisioning in wireless networks: Research Articles
Wireless Communications & Mobile Computing - RRM for Next-Generation Wireless and Mobile Communication Systems
Introduction to Probability Models, Ninth Edition
Introduction to Probability Models, Ninth Edition
The future of WiMAX: multihop relaying with IEEE 802.16j
IEEE Communications Magazine
Capacity enhancement with relay station placement in wireless cooperative networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Resource allocation with service differentiation for wireless video transmission
IEEE Transactions on Wireless Communications
Quality-of-service provisioning and efficient resource utilization in CDMA cellular communications
IEEE Journal on Selected Areas in Communications
IEEE 802.11s: WLAN mesh standardization and high performance extensions
IEEE Network: The Magazine of Global Internetworking
A MAC-Layer Retransmission Technique for Collided Packets in Wireless Sensor Network
Wireless Personal Communications: An International Journal
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As a very promising technique, multi-hop relay has been considered in many wireless networks. It can take advantage of the inherent broadcasting nature of wireless transmission and facilitate cooperative communications. In this paper, we develop an effective analytical framework to study the delay performance of cooperative retransmission strategies. All neighbor nodes overhearing the in-progress transmission cooperate in a distributed manner and contribute to retransmissions. In particular, we focus on the application of cooperative retransmission for delay-sensitive real-time services. Based on the proposed analytical framework, the cumulative distribution function of packet transfer delay can be numerically evaluated. Accordingly, we investigate the delay outage probability (i.e., the probability of violating the maximum delay bound), which is an essential statistical quality-of-service (QoS) metric for real-time services. Further, an enhancement approach is proposed to reduce unnecessary power consumption on retransmissions. It dynamically adapts the transmission probabilities of all participating nodes, depending on current retransmission count. As shown in the numerical results, the adaptive cooperative strategy can achieve a better trade-off between satisfying delay constraint and minimizing total power consumption.