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Implementation of Low Cost WiMAX Remote Radio Head with Ethernet  

Seo, Seong-Sam (Department of Electronics and Communications Engineering, Kwangwoon University)
Lee, Hyun-Seok (Department of Electronics and Communications Engineering, Kwangwoon University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.49, no.1, 2012 , pp. 35-42 More about this Journal
Abstract
This paper is about the implementation of low cost WiMAX remote radio head system with Ethernet instead of optical link. We deployed a simplified frame structure on the data frames transmitted between a basestation and remote radio heads in order to maximize Ethernet link utilization which shows relatively lower maximum throughput compared to that of optical links. In addition, a synchronization mechanism was applied on a basestation and remote radio heads placed on remote sites in order for simultaneous data transmission and reception in all remote radio heads which are essential for proper communication with terminals. These schemes are implemented with FPGA. The results of experiment with a WiMAX Femtocell show that our remote radio head systems efficiently deliver radio frames with proper timing.
Keywords
Remote Radio Head (RRH); WiMAX; CPRI; Ethernet; FPGA;
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