Retransmission optimization in CDMA random access networks

Ali, M.Z.; Torlak, Murat

doi:10.1109/milcom.2002.1179576

Cited by 1 publication

(2 citation statements)

References 6 publications

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“…It is worthwhile to note that our work is significantly different from the existing studies on retransmission schemes [24][25][26][27] for terrestrial wireless networks in terms of system models, assumptions, and algorithms. For example, the study in [24] assumes a slotted and time synchronized channel and also assumes that the transmitting node can detect packet collision during transmission.…”

Section: Related Workmentioning

confidence: 90%

“…The authors of [25] assumed that the base station knows which nodes would transmit a packet in advance and the base station monitors whether or not all expected packets are successfully received. Then, it uses a separate control channel to transmit a busy signal to all successful nodes until all collided packets are retransmitted successfully.…”

Section: Related Workmentioning

confidence: 99%

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ARS: An Adaptive Retransmission Scheme for Contention-Based MAC Protocols in Underwater Acoustic Sensor Networks

Nguyen

Yoon

2015

International Journal of Distributed Sensor Networks

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Due to the limited capacity and high propagation delay of underwater communication channels, contention-based media access control (MAC) protocols suffer from a low packet delivery ratio (PDR) and a high end-to-end (E2E) delay in underwater acoustic sensor networks due to the reliance on packet retransmission for reliable data delivery. In order to address the problem of low performance, we propose a novel adaptive retransmission scheme, named ARS, which dynamically selects an optimal value of the maximum number of retransmissions, such that the successful delivery probability of a packet is maximized for a given network load. ARS can be used for various contention-based protocols and hybrid MAC protocols that have contention periods. In this paper, ARS is applied to well-known contention-based protocols, Aloha and CSMA. Simulation results show that ARS can achieve significant performance improvement in terms of PDR and E2E delay over original MAC protocols.

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