118 search results - page 15 / 24 » Approximating Optimal Multicast Trees in Wireless Multihop N... |
TSP
2008
13 years 7 months ago
2008
The problem of transmit beamforming to multiple cochannel multicast groups is considered, when the channel state is known at the transmitter and from two viewpoints: minimizing tot...
TWC
2010
13 years 2 months ago
2010
In this paper, we study the problem of supporting multicast traffic in wireless sensor networks with network coding. On one hand, coding operations can reduce power consumption and...
INFOCOM
2010
IEEE
13 years 6 months ago
2010
IEEE
Abstract—Existing work on cross-layer optimization for wireless networks adopts simple physical-layer models, i.e., treating interference as noise. In this paper, we adopt a dete...
QOSIP
2005
Springer
14 years 29 days ago
2005
Springer
Abstract. We explore techniques for efficient Quality of Service Routing in the presence of multiple constraints. We first present a polynomial time approximation algorithm for th...
INFOCOM
2008
IEEE
14 years 1 months ago
2008
IEEE
Abstract—Energy efficiency is critical for wireless sensor networks. The data gathering process must be carefully designed to conserve energy and extend the network lifetime. Fo...