TCOM
2008
14 years 10 days ago
2008
This paper formulates power allocation policies that maximize the region of mutual informations achievable in multiuser downlink OFDM channels. Arbitrary partitioning of the availa...
ICC
2007
IEEE
14 years 4 months ago
2007
IEEE
Abstract-- This paper concerns the multiple access performance of spreading codes used in the downlink of multicarrier code-division multiple-access (MC-CDMA). Complex-valued sprea...
VTC
2006
IEEE
14 years 6 months ago
2006
IEEE
—Transmitter-based signal pre-processing is investigated for the two-dimensional (2-D) OFDM-CDMA (orthogonal frequency division multiplexing, code division multiple access) forwa...
GLOBECOM
2006
IEEE
14 years 6 months ago
2006
IEEE
— In this paper we investigate the error probability for OFDM with carrier frequency offset (CFO) in additive white Gaussian noise (AWGN) and Rayleigh fading channels. The statis...
ICC
2007
IEEE
14 years 6 months ago
2007
IEEE
— The capacity of multiple input multiple output (MIMO) system over wireless channels has been investigated analytically and by simulation over different types of wireless fading...
ICC
2007
IEEE
14 years 6 months ago
2007
IEEE
— This paper studies performance of space-time coded (STC) systems with joint transmit and receive antenna selection over multiple input multiple output (MIMO) flat and frequenc...
VTC
2008
IEEE
14 years 6 months ago
2008
IEEE
Abstract— Diversity can play an important role in the performance improvement of a communication system in fading channels. The achievable performance with signal space diversity...
CISS
2008
IEEE
14 years 7 months ago
2008
IEEE
Abstract— A cross-layer optimization combining retransmission diversity with multi-user diversity is investigated for wireless communications. To this end, a joint design of adap...