Title :
The effect of CSI imperfection on the performance of SVD based adaptive modulation in MIMO systems
Author :
Zhou, Zhendong ; Vucetic, Branka
Author_Institution :
Sch. of Electr. & Inf. Eng., Sydney Univ., NSW
Abstract :
Adaptive modulation (AM) schemes in multiinput multioutput (MIMO) systems are usually designed and analyzed under the assumption of perfect channel state information (CSI). In this paper, we consider the effect of CSI imperfection on the bit error rate (BER) and average spectral efficiency (ASE) performance. Approximate analytical expressions for BER and ASE are derived and verified by simulations. The thresholds for the CSI imperfection are identified, below which an ideally designed AM MIMO system can operate satisfactorily
Keywords :
MIMO systems; adaptive modulation; error statistics; singular value decomposition; AM scheme; ASE; BER; CSI; MIMO system; SVD; adaptive modulation; average spectral efficiency; bit error rate; multiinput multioutput; perfect channel state information; singular value decomposition; Analytical models; Australia; Bit error rate; Channel state information; Design engineering; Equations; Information analysis; MIMO; Performance analysis; Power system modeling;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365354
