Performance of MIMO-extended UMTS-FDD downlink comparing space-time RAKE and linear equalizer

The paper discusses the performance of a MIMO-extended UMTS-FDD downlink with a 2x2 and a 4x4 antenna configuration. An analytical expression for the average signal to interference ratio (SIR) of a space-time (ST) RAKE receiver in an interference dominated environment is derived. Simulations are used to assess the BER performance with the number of concurrent users as a parameter. The results are compared to a single antenna link with equivalent data rate. In addition to that, a linear zero forcing (ZF) and an MMSE MIMO equalizer receiver is evaluated and compared to the ST-RAKE. It is shown that both methods can successfully mitigate the significant performance Imitation due to self interference (SI) and multiple access interference (MAI).


Published in:
2003 Ieee 58Th Vehicular Technology Conference, Vols1-5, Proceedings, 473-477
Presented at:
58th IEEE Vehicular Technology Conference (VTC 2003), Orlando, FL, Oct 06-09, 2003
Year:
2004
Publisher:
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa
ISBN:
0-7803-7954-3
Keywords:
Laboratories:




 Record created 2011-06-06, last modified 2018-09-13


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)