Title :
New channel assignment algorithm for fixed wireless communication systems with power control
Author_Institution :
Cairo Univ., Giza
Abstract :
In fixed wireless systems, subscribers do not change their locations with time. Knowing the distribution of subscribers in the cell area, intelligent channel assignment algorithms can be designed to improve the carrier to interference ratio (C/I) in the system. In this paper, the performance of a new reverse channel reverse tiering (RCRT) assignment algorithm for fixed wireless communication systems with power control is investigated. In this algorithm a reverse channel assignment is used. Moreover, the same frequency channel is used by subscribers near to the base station in one cell and far from the base station in the co-channel cell, and vice-versa. The performance of the new algorithm is compared with two conventional algorithms for channel assignments. A simulation study was performed on the three algorithms and the improvement in C/I is reported for two cases of analog cellular system and a digital TDMA cellular system
Keywords :
cellular radio; channel allocation; digital radio; multiuser channels; power control; radiofrequency interference; telecommunication control; time division multiple access; C/I; analog cellular system; base station; carrier to interference ratio; cell area; co-channel cell; digital TDMA cellular system; fixed wireless communication systems; frequency channel; intelligent channel assignment algorithms; performance; power control; reverse channel assignment; reverse channel reverse tiering; simulation study; subscribers; subscribers distribution; Algorithm design and analysis; Appropriate technology; Base stations; Interchannel interference; Power control; Radio frequency; Speech; Telephony; Time division multiple access; Wireless communication;
Conference_Titel :
Radio Science Conference, 1999. NRSC '99. Proceedings of the Sixteenth National
Conference_Location :
Cairo
Print_ISBN :
977-5031-62-1
DOI :
10.1109/NRSC.1999.760907
