TY - GEN
T1 - Outage performance of cooperative small-cell systems under Rician fading channels
AU - Hoydis, Jakob
AU - Kammoun, Abla
AU - Najim, Jamal
AU - Debbah, Merouane
PY - 2011
Y1 - 2011
N2 - We consider a general class of Rician fading multiple-input multiple-output (MIMO) channels, modeled by a random, non-centered channel matrix with a variance profile, i.e., the independent elements of the matrix are allowed to have each a different mean and variance. This channel model is motivated by the recent interest in cooperative small-cell systems where several densely deployed base stations (BSs) cooperatively serve multiple user terminals (UTs). We study the fluctuations of the mutual information of this channel under the form of a central limit theorem (CLT) and provide an explicit expression of the asymptotic variance. The result can be used to compute an approximation of the outage probability of such channels. Although the derived expressions are only tight in the large system limit, we show by simulations that they provide very accurate approximations for realistic system dimensions.
AB - We consider a general class of Rician fading multiple-input multiple-output (MIMO) channels, modeled by a random, non-centered channel matrix with a variance profile, i.e., the independent elements of the matrix are allowed to have each a different mean and variance. This channel model is motivated by the recent interest in cooperative small-cell systems where several densely deployed base stations (BSs) cooperatively serve multiple user terminals (UTs). We study the fluctuations of the mutual information of this channel under the form of a central limit theorem (CLT) and provide an explicit expression of the asymptotic variance. The result can be used to compute an approximation of the outage probability of such channels. Although the derived expressions are only tight in the large system limit, we show by simulations that they provide very accurate approximations for realistic system dimensions.
UR - http://www.scopus.com/inward/record.url?scp=80052678982&partnerID=8YFLogxK
U2 - 10.1109/SPAWC.2011.5990472
DO - 10.1109/SPAWC.2011.5990472
M3 - Conference contribution
AN - SCOPUS:80052678982
SN - 9781424493326
T3 - IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
SP - 551
EP - 555
BT - 2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2011
T2 - 2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2011
Y2 - 26 June 2011 through 29 June 2011
ER -