5447 search results - page 862 / 1090 » Environment-Mediated Mobile Computing |
126
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WCNC
2008
IEEE
15 years 11 months ago
2008
IEEE
— In fast-varying faded channels the transmission can be organized into frames where the channel estimation is mainly training-based. For fast-varying fading channels the trainin...
153
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WCNC
2008
IEEE
15 years 11 months ago
2008
IEEE
—In this paper the autocorrelation properties of shadow fading and angle spread at both the base station (BS) and at the mobile station (MS) are analyzed using urban macro cellul...
117
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WIMOB
2008
IEEE
15 years 11 months ago
2008
IEEE
Abstract—Most contemporary security mechanisms and protocols include exchange of random or time-variant nonces as an essential means of protection against replay and other threat...
128
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WIMOB
2008
IEEE
15 years 11 months ago
2008
IEEE
—Based on the principle of spread spectrum systems, this paper presents a hybrid automatic-repeat-request (HARQ) scheme with the mitigation of intercarrier interference (ICI) by ...
189
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WIMOB
2008
IEEE
15 years 11 months ago
2008
IEEE
Abstract—One of the reasons that the research of intrusion detection in wireless sensor networks has not advanced significantly is that the concept of “intrusion” is not cle...