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A cross-layer design of packet-data transmission with space-time block coding (STBC) over multiple input and multiple output (MIMO) Nakagami-m fading (NMF) channels is presented. Based on the imperfect channel state information (CSI), the closed-form expressions of average packet error rate (PER) and average spectral efficiency (ASE) of the system with a feedback delay are derived, respectively. Due...
Based on the channel sate information feedback, the performance of multi-antenna systems with adaptive modulation and space-time coding in Rayleigh fading channels is presented in this paper. The fading gain value is partitioned into a number of regions by which the modulation is adapted in terms of the region the fading gain falls in. The fading gain region boundaries for attaining maximum spectrum...
On the basis of analyzing the principle of multicarrier DS-CDMA (MC-DS-CDMA), we propose a novel multiband complex wavelet based multicarrier DS-CDMA system in this paper by using the optimized multiband complex wavelet as multicarrier basis function. The system bit error rate (BER) performance is investigated over Nakagami fading channel. Without any cyclic prefix (CP), the proposed system can avoid...
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