577 search results - page 6 / 116 » Performance Enhancement of Wireless Communication Systems us... |
MOBILWARE
2010
ACM
13 years 5 months ago
2010
ACM
An OFDM system is very sensitive to orthogonality relation. For a mobile wireless system, it is impossible to avoid Doppler-induced inter carrier interference (ICI). Moreover, whil...
WCNC
2008
IEEE
14 years 1 months ago
2008
IEEE
—This paper proposes the use of group-orthogonal frequency diversity combined with space-time block coding (STBC) to improve the performance of IEEE 802.11n wireless networks (WL...
ICC
2007
IEEE
14 years 1 months ago
2007
IEEE
—In this paper a spatial phase coding (SPC) scheme is investigated for its application in OFDM systems. With SPC the phase relation of the signals between multiple transmit anten...
MOBICOM
2004
ACM
14 years 27 days ago
2004
ACM
Recent years have seen the growing popularity of multi-rate wireless network devices (e.g., 802.11a cards) that can exploit variations in channel conditions and improve overall ne...
CORR
2006
Springer
13 years 7 months ago
2006
Springer
We consider a hybrid wireless sensor network with regular and transmit-only sensors. The transmit-only sensors do not have receiver circuit, hence are cheaper and less energy consu...