The Reform Schema and Usability of TD-SCDMA Smart Antenna

Author

Haiyang, Fu ; Xiaochun, Qu ; Youcai, Han

Author_Institution

Nanjing Univ. of Posts & Telecommun., Nanjing

Volume

2

fYear

2008

Firstpage

229

Lastpage

234

Abstract

It´s proved in the paper that the smart antenna (SA) is unusable in the downlink of CDMA system, and so the TD-SCDMA standard should be improved. A reform schema will be given in this paper, which uses CDMA/TDMA respectively in the uplink/downlink channel. In this schema, the SA can still be used in downlink channel. It will give a new life to TD-SCDMA standard. 8PSK or 16QAM can be used in the downlink channel, which has higher spectrum efficiency. They will transfer the surplus downlink power to the spectrum efficiency. The improved TD-SCDMA standard will meet the needs of the mobile Internet.

Keywords

adaptive antenna arrays; channel coding; code division multiple access; phase shift keying; quadrature amplitude modulation; spectral analysis; time division multiple access; PSK; QAM; TD-SCDMA smart antenna; TDMA standard; downlink channel; mobile Internet; reform schema; spectrum efficiency; time division-synchronous code division multiple access; uplink channel; Communication standards; Downlink; Intelligent systems; Multiaccess communication; Multiple access interference; Proposals; Telecommunication standards; Time division multiple access; Time division synchronous code division multiple access; Usability;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Systems Design and Applications, 2008. ISDA '08. Eighth International Conference on

Conference_Location

Kaohsiung

Print_ISBN

978-0-7695-3382-7

Type

conf

DOI

10.1109/ISDA.2008.123

Filename

4696336