在微蜂窩碼分多址小區(qū)的上行鏈路實(shí)現(xiàn)比特同步的設(shè)想
THE BIT-SYNCHRONOUS COMMUNICATION ON THE UP-LINK OF MICRO-CELL CDMA SYSTEMS
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摘要: 本文認(rèn)為在微蜂窩小區(qū)的結(jié)構(gòu)下,即蜂窩小區(qū)的半徑在100m到200m時(shí),可由小區(qū)基站發(fā)出比特同步信息,小區(qū)內(nèi)的各手持機(jī)根據(jù)接收到的比特同步信息,實(shí)現(xiàn)上行鏈路的比特同步通信。本文的分析和計(jì)算表明,同步通信可顯著地降低誤碼率。
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關(guān)鍵詞:
- 微蜂窩小區(qū); 碼分多址; 上行鏈路
Abstract: This paper points out that in micro-cell situation, that is the cell s radius is between 100m and 200m, the cell s basestation can transmit the bit-synchronous information, and all the mobile phones of the cell can be bit-synchronous on the up-link according to this information. The analysis and calculation present that bit-synchronous can greatly decrease the bit-error probability. -
Lee W C Y. Overview of cellular CDMA. IEEE Trans. on Veh. Technol., 1991, VT-40(2): 291-302.[2]Geraniotis E A. Parsley M B. Performance of coherent direct-sequence spread-spectrum commu-[3]nications over specular multipath fading channels. IEEE Trans, on Common. 1988, COM-33(6): 502-517.[4]霍姆斯.J. K,著,梁振興,蔡開基,譯.相干擴(kuò)展頻譜系統(tǒng).北京:國(guó)防工業(yè)出版社,1991,第七章、第八章. -
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