Communication over a quantum multiple-access channel (MAC) with cribbing encoders is considered, whereby Transmitter 2 performs measurement on system that entangled 1. Based the no-cloning theorem, perfect impossible. This leads to introduction of MAC model noisy cribbing. In causal and non-causal scenarios, before input 1 sent through channel. Hence, 2's may inflict "state collapse" for Achiev...

あらまし 複数の送受信アンテナを用いる Multiple-input multiple-output(MIMO)通信では空間ダイバーシチと 空間多重との間にトレードオフの関係がある.ところで,従来のセルラーネットワークでは,セル中心では受 信信号対(干渉+雑音)電力比(SINR)が高いため空間多重によりスループット向上が可能であるが,伝搬損失や 同一周波数を使用する他セルからの干渉(CCI)の大きいセル端では空間ダイバーシチが重要である.筆者らは 以前シングルキャリア(SC)MIMO を対象に,多重度数を適応制御することで空間ダイバーシチと空間多重間の トレードオフを制御すれば,常に最大のスループットを達成できることを示した.しかし,その検討では理想 チャネル推定を仮定していた.そこで,本稿では MIMO 多重度数適応可変通信のスループットに及ぼす循環 遅延パイロットチャネル推定(C...

In this paper, we investigate the benefit of Joint Network Channel (JNC) coding and decoding for the slow fading Multiple Access Multiple Relay Channel (MAMRC), defined as follows: (1) Independent sources communicate with a single destination in the presence of multiple relays; (2) Each relay is halfduplex and applies a Selective Decode and Forward (SDF) relaying strategy, i.e, it forwards a de...

We characterize the sum capacity of the multiple antenna Gaussian broadcast channel by showing that the existing inner bound of Marton and the existing upper bound of Sato are tight for this channel. We exploit an intimate four-way connection between the multiple antenna broadcast channel, the corresponding point-to-point channel (where the receivers can cooperate), the multiple access channel ...

Introduction: Ionic channel rearrangements through the demyelinated axons or supporting media play significant role in remission of the neurological deficit in MS patients. In this study the effects of Verapamil as a calcium channel blocker on central conduction have been investigated through the evaluation of changes in P100 latency of the visual evoked potential. Method: This randomized doubl...

a fuzzy observer based scheme for synchronizing two hyperchaoticoscillators via a scalar transmitted signal for cryptographic application isproposed. the takagi-sugeno fuzzy model exactly represents chaotic systems.based on the general fuzzy model, the fuzzy observer of a chaotic system isdesigned on the basis of the n-shift multiple state based key encryption algorithm.the scalar transmitted s...