577 search results - page 27 / 116 » Performance Enhancement of Wireless Communication Systems us... |
ICC
2008
IEEE
14 years 2 months ago
2008
IEEE
—In this paper the performance of unslotted ALOHA and CSMA are analyzed in spatially distributed wireless networks. Users/packets arrive randomly in space and time according to a...
ICC
2008
IEEE
14 years 2 months ago
2008
IEEE
—In this paper, frequency-domain interleaving on a frame-by-frame basis for orthogonal frequency division multiplexing combined with time division multiplexing (OFDM/TDM) using m...
TPDS
2002
13 years 7 months ago
2002
Sensor webs consisting of nodes with limited battery power and wireless communications are deployed to collect useful information from the field. Gathering sensed information in an...
GLOBECOM
2008
IEEE
14 years 2 months ago
2008
IEEE
— In this paper, we propose a novel asynchronous Media Access Control (MAC) protocol, Opportunistic MAC (OMAC), for Multiple Input Multiple Output (MIMO) ad-hoc networks. The pro...
CORR
2010
Springer
13 years 7 months ago
2010
Springer
In this paper, a two-hop relay assisted cooperative Orthogonal Space-Time Block Codes (OSTBC) transmission scheme is considered for the downlink communication of a cellular system,...