Title :
Investigation of TDD and FDD CDMA coexistence in the macro environment employing smart antenna techniques
Author :
Peng, Mugen ; Huang, Biao ; Wang, Wenbo
Author_Institution :
Center for Wireless Commun., Beijing Univ. of Posts & Telecommun., China
fDate :
29 Aug.-1 Sept. 2004
Abstract :
This paper investigates the impact of adjacent channel interference between TDD and FDD CDMA operators operating in macro environment. In the TDD-CDMA system, the smart antenna technique is employed and the performance is investigated and compared with the omni-directional antenna. Evaluation of TDD/FDD CDMA system coexistence is studied based on a static simulator. Intersystem interference impacts the capacity under various ACIRs (adjacent channel Interference ratios), the base station location offsets, and the cell radiuses are studied. Furthermore, the differences in impacting the capacity loss between the omni-directional and smart antennas are compared and analyzed. Results and conclusions are shown, which are useful for future CDMA cellular planning and frequency license allocation in 2 GHz.
Keywords :
3G mobile communication; adaptive antenna arrays; adjacent channel interference; code division multiple access; frequency allocation; frequency division multiplexing; telecommunication network planning; time division multiplexing; 2 GHz; CDMA cellular planning; FDD CDMA; TDD CDMA; adjacent channel interference ratio; frequency license allocation; frequency spectrum management; intersystem interference; macro environment; omnidirectional antenna; smart antenna technique; Base stations; Downlink; Frequency; Interchannel interference; Licenses; Monitoring; Multiaccess communication; Power system modeling; Radio spectrum management; Wireless communication;
Conference_Titel :
Communications, 2004 and the 5th International Symposium on Multi-Dimensional Mobile Communications Proceedings. The 2004 Joint Conference of the 10th Asia-Pacific Conference on
Print_ISBN :
0-7803-8601-9
DOI :
10.1109/APCC.2004.1391648
