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TCOM
2010
61views more  TCOM 2010»
9 years 10 months ago
Variable-rate M-PSK communications without channel amplitude estimation
—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...
Athanasios S. Lioumpas, George K. Karagiannidis
JCM
2007
114views more  JCM 2007»
9 years 11 months ago
Tunable Pulse Amplitude and Position Modulation Technique for Reliable Optical Wireless Communication Channels
—Modulation techniques have attracted increasing attention in optical wireless communications. Basic schemes such as on off keying (OOK), pulse amplitude modulation (PAM) and pul...
Yu Zeng, Roger J. Green, Shaobo Sun, Mark S. Leeso...
DSD
2004
IEEE
136views Hardware» more  DSD 2004»
10 years 3 months ago
Architecture of Wireless Sensor Node using Novel Ultra-Wideband Modulation Scheme
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...
Matthew D'Souza, Adam Postula
ISCAS
1999
IEEE
131views Hardware» more  ISCAS 1999»
10 years 3 months ago
A multilevel modulation scheme for high-speed wireless infrared communications
To investigate short-distance, point-to-point, infrared channels, a test-bench and circuits were constructed to determine the limitations ofexisting optoelectronics. Theresults of...
S. Hranilovic, D. A. Johns
AINA
2003
IEEE
10 years 4 months ago
A Safe Multiple Access-Rates Transmission (SMART) Scheme for IEEE 802.11 Wireless Networks
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...
Shiann-Tsong Sheu, Jenhui Chen, Hsueh-Wen Tseng, H...
IFIP
2004
Springer
10 years 5 months ago
BER Estimation for HiperLAN/2
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...
Lodewijk T. Smit, Gerard J. M. Smit, Johann Hurink...
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