Traffic-aware channelization medium access control for wireless ad hoc networks
| Autor: | Wei Ji-bo, Zhang Shaojie, Ma Dongtang, Zhao Haitao, Shi Chunguang |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Computer Networks and Communications
business.industry Wireless ad hoc network Service set Wireless network Computer science ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Ad hoc wireless distribution service Network allocation vector Computer Science::Performance Computer Science::Networking and Internet Architecture Multiple Access with Collision Avoidance for Wireless Electrical and Electronic Engineering business Computer Science::Information Theory Computer network IEEE 802.11s Wireless distribution system |
| Zdroj: | China Communications. 10:88-100 |
| ISSN: | 1673-5447 |
| DOI: | 10.1109/cc.2013.6506934 |
| Popis: | Existing multi-channel Medium Access Control (MAC) protocols have been demonstrated to significantly increase wireless network performance compared to single channel MAC protocols. Traditionally, the channelization structure in IEEE 802.11 based wireless networks is pre-configured, and the entire available spectrum is divided into subchannels and equal channel widths. In contrast, this paper presents a Traffic-Aware Channelization MAC (TAC-MAC) protocol for wireless ad hoc networks, where each node is equipped with a single half duplex transceiver. TAC-MAC works in a distributed, fine-grained manner, which dynamically divides variable-width subchannels and allocates subchannel width based on the Orthogonal Frequency Division Multiplexing (OFDM) technique according to the traffic demands of nodes. Simulations show that the TAC-MAC can significantly improve network throughput and reduce packet delay compared with both fixed-width multi-channel MAC and single channel 802.11 protocols, which illustrates a new paradigm for high-efficient multi-channel MAC design in wireless ad hoc networks. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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