Title :
A divide-and-conquer approach with adaptive modulation to CDMA systems
Author :
Dwivedi, Satyam ; Vedavathy, T.S. ; Shivaprasad, A.P.
Author_Institution :
Dept. of Electr. Commun. Eng., Indian Inst. of Sci., Bangalore, India
Abstract :
A new divide-and-conquer scheme has been proposed with adaptive modulation in CDMA system to improve the spectrum efficiency of the wireless communication system. The proposed method results in increase in average throughput achieved and simultaneously decrease in the outage probability of the system when the user density is high. The proposed scheme is compared with the existing algorithms and the advantage of the scheme is evident from the results obtained.
Keywords :
adaptive modulation; code division multiple access; divide and conquer methods; probability; radiocommunication; time division multiple access; TD-CDMA system; adaptive modulation; divide-and-conquer scheme; spectrum efficiency; system outage probability; system throughput; wireless communication system; Base stations; Dynamic range; Fading; Multiaccess communication; Propagation losses; Quadrature amplitude modulation; Quality of service; Shadow mapping; Throughput; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN :
0-7803-7974-8
DOI :
10.1109/GLOCOM.2003.1258424
