OFDM时变衰落信道分解信道模型Viterbi算法There exist Inter-Carrier Interference (ICI) phenomena when OFDM signals are transmitted through time-varying fading channels. The performance of communication systems also decreases
- 《IEEE Transactions on Communications》 被引量: 18发表: 2007年 Space-time trellis codes with linear transformation for fast fading channels A precoded space time coding scheme-space time trellis code with linear transformation (STTC-LT) is presented in this letter. The upper bound on pairwise...
A method of characterizing the non-WSSUS wideband channels using a statistical concept termed LSSUS assumption is presented in the time-scale domain. The LSSUS concept results primarily from the designation of statistical intervals of quasi-stationarity and quasi-nonstationarity over which the WSSUS an...
In this section, we derive a proper biased channel distribution for OSTBC systems operating over spatially correlated Nakagami-m fading channels. As an approximation of the actual conditional bit error probability Pb,n(h) of the system affected by channel estimation errors, we take the conditional...
We consider stochastic blind maximum-likelihood detection of orthogonal space-time block codes (OSTBCs) over a quasi-static flat multiple-input multiple-ou... T Cui,C Tellambura - 《Wireless Communications IEEE Transactions on》 被引量: 58发表: 2007年 A Low Complexity Space-Time Block Codes ...
In: Wireless communications over rapidly time-varying channels, p 1–63 Mecklenbraüker CF, Molisch AF, Karedal J, Tufvesson F, Paier A, Bernado L, Zemen T, Klemp O, Czink N (2011) Vehicular channel characterization and its implications for wireless system design and performance. Proc ...
The simulations in both flat-fading channels and frequency-selective channels have confirmed such improvement. Copyright ? 2005 John Wiley & Sons, Ltd.doi:10.1002/wcm.280Yinggang DuKam Tai ChanJohn Wiley & Sons, Ltd.Wireless Communications & Mobile Computing...
Based on this expression, the exact union bounds for a geometrically uniform space-time trellis code (STTC) over fast fading channels can be obtained by using the transfer function bounding technique. 展开 关键词: Gaussian processes Rayleigh channels Rician channels channel coding error statistics ...
(ACK or NAK) for each received or lost packet. We assume that the receivers send feedback to the sender using dedicated control channels and the feedback is error-free. A stronger channel error correcting code is often employed for control bits compared to the data bits. Moreover, the ...
In the model formulated here, all of these nodes have two-way communications capability with each other providing a means for an interconnected alliance between the entities. This intertwines more closely with the notion of communication, as nodes are communicating their observations and using this ...