Title :
Adaptive modulation and adaptive antenna array assisted network performance of multi-user detection aided UTRA-like FDD/CDMA
Author :
Blogh, J.S. ; Hanzo, L.
Author_Institution :
Dept. of Electron. & Comput. Sci., Southampton Univ., UK
Abstract :
The adaptive antenna array and adaptive modulation aided network performance of a frequency division duplex (FDD) code division multiple access (CDMA) based system is investigated using system parameters similar to those of the Universal Mobile Telecommunication System (UMTS). A number of performance metrics, such as the call dropping probability, the average throughput as well as the required average transmit power are quantified. It is demonstrated that the employment of adaptive modulation techniques in conjunction with adaptive antenna arrays resulted in significant network capacity gains in the scenarios investigated.
Keywords :
3G mobile communication; adaptive antenna arrays; adaptive modulation; array signal processing; code division multiple access; fading channels; multiuser detection; probability; quadrature amplitude modulation; 3G system; AQAM; UMTS; UTRA-like FDD/CDMA; Universal Mobile Telecommunication System; adaptive antenna array; adaptive modulation; average throughput; average transmit power; call dropping probability; code division multiple access; frequency division duplex system; interference rejection; log-normal shadow faded propagation; multi-user detection; network capacity; network performance; nonshadowed propagation environments; performance metrics; third-generation system; 3G mobile communication; Adaptive arrays; Adaptive systems; Antenna arrays; Frequency conversion; Measurement; Mobile antennas; Modulation coding; Multiaccess communication; Multiuser detection;
Conference_Titel :
Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th
Print_ISBN :
0-7803-7467-3
DOI :
10.1109/VETECF.2002.1040528
