TCOM
2010
13 years 9 months ago
2010
—Channel estimation at the receiver side is essential to adaptive modulation schemes, prohibiting low complexity systems from using variable rate and/or variable power transmissi...
JCM
2007
13 years 11 months ago
2007
—Modulation techniques have attracted increasing attention in optical wireless communications. Basic schemes such as on off keying (OOK), pulse amplitude modulation (PAM) and pul...
DSD
2004
IEEE
14 years 3 months ago
2004
IEEE
Recently ultra-wideband (UWB) communications has emerged as an alternative to narrowband communications used in wireless sensor networks. One of UWB(s) most attractive feature for...
ISCAS
1999
IEEE
14 years 3 months ago
1999
IEEE
To investigate short-distance, point-to-point, infrared channels, a test-bench and circuits were constructed to determine the limitations ofexisting optoelectronics. Theresults of...
AINA
2003
IEEE
14 years 4 months ago
2003
IEEE
Abstract— The IEEE 802.11 standard and enhanced amendments have defined fourteen transmission rates (1/2/5.5/6/9/11/12/ 18/22/24/33/36/48/54 Mb/s) for mobile stations to transmi...
IFIP
2004
Springer
14 years 4 months ago
2004
Springer
This paper presents a method to estimate the bit error rate (BER) of the wireless channel based on statistical analysis of the soft output of the receiver only. In HiperLAN/2 sever...