Title :
Data throughput in a multi-rate CDMA reverse link: comparing optimal spatial combining vs. maximal ratio combining
Author :
Burke, Joseph P. ; Zeidler, James R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, San Diego, CA, USA
Abstract :
The reverse link (mobile to base station) average data rate carrying capacity of a CDMA communications system is analyzed comparing different antenna array spatial combining algorithms: optimum combining (OC) versus maximal ratio combining (MRC) in a multiuser system employing multi-rate traffic (combined voice and data users) over Rayleigh fading channels. Typical CDMA power and interference relationships for an embedded multi-cell CDMA reverse link are discussed in the context of spatial OC algorithms and related to the total reverse link data throughput. Other-cell interference and chosen system rise-over-thermal metrics are found to limit the possible gain increase using OC vs. MRC
Keywords :
Rayleigh channels; antenna arrays; cellular radio; code division multiple access; integrated voice/data communication; multiuser channels; radiofrequency interference; telecommunication traffic; thermal noise; 153.6 kbit/s; 307.2 kbit/s; CDMA reverse link; Rayleigh fading channels; antenna array; cdma2000; combined voice data communication; data rate carrying capacity; data throughput; maximal ratio combining; multi-rate CDMA; multi-user system; optimal spatial combining; optimum combining; rise-over-thermal metrics; thermal noise; Algorithm design and analysis; Antenna arrays; Base stations; Communication system traffic; Diversity reception; Interference; Mobile antennas; Multiaccess communication; Speech analysis; Throughput;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.965206
