An integration of multiple input and multiple output (MIMO) and orthogonal frequency division multiplexing (OFDM) exploit spatial diversity for high data rate transmission of signals over wireless channel. In this paper, analytical models have been developed to suppress signal to noise plus interference ratio incorporating inter carrier interference and average probability of error with the con...

A study was conducted using a randomized complete block design to determine feed intake, live-weight changes, milk yield and cost of milk production in Friesian cows fed napier grass (NG) at 10 weeks (MNG) or 15 weeks (ONG) of maturity. The MNG or ONG was supplemented with equal amounts of sunflower (SFBC) or poultry litter (PLBC) based concentrates in experiment 1, while in experiment 2, the M...

The development of intelligent radios in wireless applications is mainly driven by the growing need for higher data rates, along with constrained spectrum resources. An radio one that can autonomously assess communication environment and automatically update parameters to achieve optimal performance. problem determining type space-frequency block coding (SFBC) orthogonal frequency division mult...

A full-diversity space-frequency block code (SFBC) for Single-Carrier Frequency-Division Multiple Access (SC-FDMA) systems is presented. The code is designed for 2 transmit antennas and preserves the low envelope fluctuations of SC signals. We prove the good performance of the proposed scheme over multiple-input multiple-output (MIMO) channels, both in static and in high-speed mobility scenarios.

が大きく劣化してしまうという問題がある. そこで本稿では,この問題を解決するために,TDD-SC-SFBC ダイバーシチのためのマルチサブキャリア FDE (MS-FDE)を提案する.提案法では,最小平均二乗誤差(MMSE)規範に基づき,1 符号語内のチャネルの周波数 変動を考慮して複数のサブキャリアの FDE 重みを同時に最適化することで,SFBC 符号の直交性の崩れに起因する 干渉を抑圧する.提案 MS-FDE を用いる TDD-SC-SFBC ダイバーシチを行った場合の平均 BER 特性を計算機シミュ レーションにより求め,MS-FDE は 1 符号語内でチャネルが周波数変動しないものと仮定して最適化された従来 FDE より常に優れた平均 BER 特性を達成できることを明らかにしている.また MB-FDE を用いる TDD-SC-STBC ダイバーシチとの特性比較を行い,TDD...