577 search results - page 2 / 116 » Performance Enhancement of Wireless Communication Systems us... |
TCOM
2008
13 years 5 months ago
2008
In cellular wireless communication systems, there have been various receiver-based techniques for performance improvement. However, it may be desirable to use transmitterbased tech...
TWC
2010
12 years 11 months ago
2010
An adaptive regenerate and forward cooperative diversity (CD) system using quadrature amplitude modulation (QAM) for a two-user cooperation is proposed. The proposed system can ach...
ICC
2007
IEEE
13 years 11 months ago
2007
IEEE
: The separating distance between the transceivers is one of the main factors that affect the quality of the received optical signal as the receiver changes locations in an optical...
TWC
2010
12 years 11 months ago
2010
The closed-loop transmit diversity technique is used to improve the performance of the downlink channel in MIMO communication systems. In these closed-loop systems, feedback delay...
ICC
2007
IEEE
13 years 11 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...