支持动态调整的开放式无线网络DCF协议实现(英文)

作者：王杉; Abdelhakim Hafid; 赵海涛; 黄圣春; 熊春林; 魏急波

来源：China Communications, 2012, (07): 77-89.

• wireless networks
• DCF
• adaptation capability
• FPGA
• CSMA/CA
• cognitive networks

This work proposes a Field Programmable Gate Array (FPGA)-oriented architecture for the IEEE 802. 11 Distributed Coordination DCF) transceiver. We describe the functional blocks carrying out the Carrier Sense Multiple Accesses with Collision Avoidance (CSMA/CA), develop the interfaces to the application layer and the physical layer, and implement it on FPGA devices by utilizing Very-high-speed-integrated-circuit Hardware Description Language (VHDL). The novelty of our proposal is twofold. Firstly, all MAC parameters (i.e., Max/Min Contention Window, Data Unit Length, Fragmentation Threshold, Retry Limit, etc.) can be directly accessed and programmed from the application layer interface, which is necessary to achieve better network performance in dynamic environments. Secondly, the character based on FPGA makes the proposal more flexible and risk-reduced for the development of DCF-based wireless networks, such as MANETs and software-defined-radio-based cognitive ad hoc networks.

• 单位
  University of Montreal