416 search results - page 38 / 84 » Outage Performance of Cognitive Wireless Relay Networks |
TMC
2010
13 years 7 months ago
2010
– While a lot of existing research attempts to extend the lifetime of a wireless sensor network (WSN) by designing energy efficient networking protocols, the impact of random dev...
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...
CORR
2010
Springer
13 years 9 months ago
2010
Springer
Equal allocation of bandwidth and/or power may not be efficient for wireless multi-user networks with limited bandwidth and power resources. Joint bandwidth and power allocation s...
CORR
2008
Springer
13 years 9 months ago
2008
Springer
This paper presents a cross-layer approach to jointly design adaptive modulation and coding (AMC) at the physical layer and cooperative truncated automatic repeat request (ARQ) pro...
GLOBECOM
2006
IEEE
14 years 3 months ago
2006
IEEE
This paper considers a sensor network where relay nodes cooperate in order to minimize the total energy consumption for the unicast transmission of a message from a single source ...