一種評價和設計蜂窩系統頻率複用方案的新方法

Abstract

在頻率複用方案(Frequency Reuse Schemes, FRS)的研究中，性能分析和對比大都針對某些指標獨立進行。本文提出一種新方法－「吞吐量(Throughput)-社區間干擾(Inter-cell Interference, ICI)水準折衷關係圖」以全面評價和設計FRS，並以複用分割方案(Reuse Partitioning Scheme, RPS)和軟頻率複用方案(Soft Frequency Reuse Scheme, SFRS)為例說明該方法的應用。分析表明：RPS在對抗ICI方面有優勢，但設計不當將導致吞吐量和抗ICI性能均劣於傳統的頻率複用方案(Traditional Frequency Reuse Scheme, TFRS)；SFRS在吞吐量方面有優勢，對於低比特率、誤碼率要求低的業務SFRS有望在上述兩項性能上均優於TFRS。In the research of frequency reuse schemes (FRS), performance analyses and comparisons are mostly based on some merits independently. In this paper, we propose a new method named as ”Thoughput-Intercell Interference (ICI) Level Tradeoff Map” for evaluating and designing FRS and show its applications by taking Reuse Partitioning Scheme (RPS) and Soft Frequency Reuse Scheme (SFRS) for example. Analyses show that RPS is superior in ICI mitigation but may result in worse performance than Traditional Frequency Reuse Scheme (TFRS) on both throughput and ICI mitigation due to improper design, while SFRS is superior in throughput and may achieve better performance than TFRS on both the two merits for low bit rate and low BER requirement services.