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Design and Implementation of MAC Engine for Next-Generation WLAN  

Lee, Yeong-Gon (Department of Electronics and Communication Engineering, Kwangwoon University)
Jeong, Yong-Jin (Department of Electronics and Communication Engineering, Kwangwoon University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.46, no.6, 2009 , pp. 39-47 More about this Journal
Abstract
This paper presents implementation of two types of the 802.11 MAC engine for the next generation WLAN, 802.11n. The first version of MAC engine consists of hardwired logic and embedded firmware. Hardwired logic includes Tx block, Rx block, Backoff block, and ChannelManage block. Embedded firmware contains Protocol Control block, MLME block, and MSDU processing block. The first version has a time-critical fault during the atomic transmission caused by software overhead, so it can not be applied to 802.11n MAC. For that reason, the second version has additional blocks with hardwired logic modules to reduce software overhead of the first version. This enhanced version has 73Mbps throughput and it is expected to be further improved up to 129 Mbps with frame aggregation which is one of the key additional features of 802.11n. As a result, the second version of MAC engine can be applied to 802.11n MAC.
Keywords
WLAN; 802.11; Legacy MAC; 802.11n; SoC;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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