SINR Estimation and Orthogonality Factor Calculation of DS-CDMA Signals in MIMO Channels Employing Linear Transceiver Filters
2007 (English)In: Wireless Communications & Mobile Computing, ISSN 1530-8669, E-ISSN 1530-8677, Vol. 7, no 1, 103-112 p.Article in journal (Refereed) Published
A discrete-time model of DS-CDMA signaling using multiple transmit and receive antennas employing linear transceiver filters is derived. For each link, connecting a base-station to a wireless mobile user, the downlink signal to interference plus noise ratio (SINR) after despreading is derived analytically, and as a by-product an exact closed-form solution of the orthogonality factor is obtained.
The orthogonality factor is derived for any linear receiver structure that is implemented by a bank of correlators and for any linear combining techniques (such as MRC and MMSE), and for any number of transmit and/or receive antennas that utilize transmit (pre-RAKE) and receive (post-RAKE) filtering.
The MIMO DS-CDMA model is derived using a filter representation, and is extended to a vector/matrix formulation that permits a systematic and efficient way of computing the SINR in a radio network simulator.
Place, publisher, year, edition, pages
John Wiley & Sons, Ltd. , 2007. Vol. 7, no 1, 103-112 p.
multiple input multiple output, DS-CDMA, pre-RAKE, post-RAKE, SINR, orthogonality factor, BER, radio network simulation
Computer and Information Science
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-29787DOI: 10.1002/wcm.321ISI: 000243822400009OAI: oai:DiVA.org:kth-29787DiVA: diva2:398032
QC 201102182011-02-162011-02-162011-02-18Bibliographically approved