Wireless Internet. 6th International ICST Conference, WICON 2011, Xi’an, China, October 19-21, 2011, Revised Selected Papers

Research Article

Multi-cell Joint Detection and Macrodiversity for TD-SCDMA Trunking System

Download
345 downloads
  • @INPROCEEDINGS{10.1007/978-3-642-30493-4_23,
        author={Xiaoxiang Shen and Hui Zhi and Shixiang Shao and Meiling Ding},
        title={Multi-cell Joint Detection and Macrodiversity for TD-SCDMA Trunking System},
        proceedings={Wireless Internet. 6th International ICST Conference, WICON 2011, Xi’an, China, October 19-21, 2011, Revised Selected Papers},
        proceedings_a={WICON},
        year={2012},
        month={10},
        keywords={TD-SCDMA trunking system multi-cell channel estimation multicell joint detection macro-diversity},
        doi={10.1007/978-3-642-30493-4_23}
    }
    
  • Xiaoxiang Shen
    Hui Zhi
    Shixiang Shao
    Meiling Ding
    Year: 2012
    Multi-cell Joint Detection and Macrodiversity for TD-SCDMA Trunking System
    WICON
    Springer
    DOI: 10.1007/978-3-642-30493-4_23
Xiaoxiang Shen1,*, Hui Zhi1,*, Shixiang Shao1,*, Meiling Ding2,*
  • 1: Nanjing University of Posts and Telecommunications
  • 2: ZTE Corporation
*Contact email: sxx473623@163.com, zhihui.student@163.com, shaosx@njupt.edu.cn, ding.meiling@hotmail.com

Abstract

Broadcast transmission is used in the downlink for TD-SCDMA trunking systems in the same frequency and same time slot, so the MAI of multi-cell is very serious. In this paper, we discuss the classical joint detection algorithms used for interference suppression. Considering the characteristics of trunking system, we can consider multi-cell model as macro-diversity model, when users of target group are distributed in different cells. We simulate under three different channel models (described in section 2), and it is shown that joint detection and macro-diversity can significantly improve system performance. The impairing effect of error propagation on macro-diversity depends on the distribution of the target group.