691 search results - page 85 / 139 » Communicating Under Channel Uncertainty |
SENSYS
2006
ACM
14 years 2 months ago
2006
ACM
Datalink layer framing in wireless sensor networks usually faces a trade-off between large frame sizes for high channel bandwidth utilization and small frame sizes for effective e...
CNSR
2005
IEEE
14 years 2 months ago
2005
IEEE
Bit Error Rate (BER) and Packet Error Rate (PER) are important Quality of Service Parameters for Wireless network. Most of researches in QoS have been devoted to the analysis of B...
GLOBECOM
2008
IEEE
14 years 3 months ago
2008
IEEE
—MIMO-OFDM wireless systems require adaptive modulation and coding based on channel state information (CSI) to maximize throughput in changing wireless channels. Traditional adap...
SECON
2007
IEEE
14 years 3 months ago
2007
IEEE
— Multiuser diversity is a phenomenon caused by channel variations among different users in a wireless network. Cooperative relaying provides another form of diversity due to the...
TWC
2010
13 years 3 months ago
2010
This work evaluates opportunistic relaying in the presence of thermal noise as well as interference, when channel sensing is conducted reactively, in slow fading environments. The ...