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Towards Wide-Open, Adaptable DCF Implementation for Dynamic Networks 被引量:2

Towards Wide-Open, Adaptable DCF Implementation for Dynamic Networks
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摘要 Abstract: This work proposes a Field Programmable Gate Array (FPGA)-oriented architecture for the IEEE 802.11 Distributed Coordination Function (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). This work proposes a Field Programmable Gate Array (FPGA)-oriented architecture for the IEEE 802. 11 Distributed Coordination Function (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.
出处 《China Communications》 SCIE CSCD 2012年第7期77-89,共13页 中国通信(英文版)
基金 the National Natural Science Foundation of China
关键词 wireless networks DCF adaptation capability FPGA CSM A/CA cognitive networks DCF 动态网络 现场可编程门阵列 载波侦听多路访问 FPGA器件 分布式协调功能 硬件描述语言 IEEE
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