LINEAR PRECODING FOR MIMO CHANNELS WITH OUTDATED CHANNEL STATE INFORMATION IN MULTIUSER SPACE-TIME BLOCK CODED SYSTEMS WITH MULTI-PACKET RECEPTION
摘要
A joint set of linear precoder designs is provided for single cell uplink multiuser space-time block coded multiple-input multiple-output (MIMO) systems with multi- packet reception by exploiting outdated channel state information. By deriving the pairwise error probability with respect to both minimum and average codeword distance design metrics, an optimization problem is solved subject to transmit power constraint for each user and dependent on the outdated channel state information. Due to the non- convex nature of the optimization problem, an iterative technique based on alternating minimization and projected gradient can be used to solve for a joint linear precoding structure for general space-time block coding, which is then sent from the base station to various consumer premise equipment for use in later transmissions. For orthogonal space-time block code, a simplified distributed technique provides a closed-form solution of the optimization problem.
申请公布号
WO2009087579(A3)
申请公布日期
2010.11.18
申请号
WO2009IB05015
申请日期
2009.01.07
申请人
HONG KONG TECHNOLOGIES GROUP LIMITED;AU, EDWARD;HUANG, JANE, WEI;LAU, VINCENT, KING, NANG
发明人
AU, EDWARD;HUANG, JANE, WEI;LAU, VINCENT, KING, NANG