A Novel Decentralized Time Slot Allocation Algorithm in Dynamic TDD System

被引：0

作者：

Choi, Young Sil ^{[1
]}

Sohn, Illsoo ^{[1
]}

Lee, Kwang Bok ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Elect Engn, Seoul, South Korea

来源：

2006 3RD IEEE CONSUMER COMMUNICATIONS AND NETWORKING CONFERENCE, VOLS 1-3 | 2006年

关键词：

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper proposes the decentralized time Slot allocation (DTSA) algorithm in dynamic TDD (DTDD) system to support traffic asymmetry. In D-TDD systems, additional interferences are introduced when one cell is uplink (downlink) and the other cell is downlink (uplink). These kinds of interferences result in severe performance degradation of SIR, which occurs especially to users in cell edge than users in cell center. To reduce additional interferences, DTSA algorithm is applied to D-TDD system. This algorithm assumes decentralized cellular network, so, it operates independently in each cell and has lower complexity than the other systems. Using DTSA algorithm, the outage probability of uplink and downlink at 0dB are decreased about 4.3% and 8.5% compared to conventional D-TDD system, respectively. Also DTSA algorithm increases the system capacity compared to S-TDD system and conventional D-TDD system. Simulation results show that D-TDD system with DTSA algorithm can support more asymmetric traffic than other systems, which increase system capacity.

引用

页码：1268 / 1272

页数：5

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