An adaptive MAC scheme to achieve high channel throughput and QoS differentiation in a heterogeneous WLAN

Zha, Wei; Hu, Rose Qingyang; Qian, Yi; Cheng, Yu

doi:10.1145/1185373.1185407

Cited by 5 publications

(1 citation statement)

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“…In a multiple hop wireless networks, a Medium Access Control (MAC) protocol plays a crucial role on the performance of wireless networks such as network throughput, packet delay, and energy consumption [1][2]. Thus, in this paper, we present a new adaptive MAC protocol by combining Time Division Multiple Access (TDMA) and a p-persistent scheme.…”

Section: Introductionmentioning

confidence: 99%

Adaptive MAC Protocol for Throughput Enhancement in Multihop Wireless Networks

Pham

Youn

2015

NPA

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In the paper, we propose a dynamic transmission scheduling protocol for multi-hop wireless networks by combining a fixed scheduling scheme with a simple p-persistent approach. In a fixed scheduling scheme, a predetermined schedule is assigned to each wireless node before transmitting data, and this schedule will be used permanently. However, in the proposed protocol, an adaptive probability-based approach is used in order to reduce the number of collisions. When a node is ready to send, it calculates the transmission probability p new , using a successful transmission ratio, a previous transmission probability p old , and a queue utilization ratio. The transmission probability p new determines whether or not a node can transmit. Our simulation study shows that the new MAC scheduling scheme improves the network throughput and reduces the energy consumption by eliminating the number of collisions considerably.

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Section: Introductionmentioning

confidence: 99%