Sciweavers

1860 search results - page 349 / 372
» J-Sim: A Simulation Environment for Wireless Sensor Networks
Sort
View
SASN
2005
ACM
14 years 1 months ago
Key distribution and update for secure inter-group multicast communication
Group communication has become an important component in wireless networks. In this paper, we focus on the environments in which multiple groups coexist in the system, and both in...
Weichao Wang, Bharat K. Bhargava
LCN
2005
IEEE
14 years 1 months ago
Constructing Efficient Multi-hop Mesh Networks
The Wireless Channel-oriented Ad-hoc Multi-hop Broadband (W-CHAMB) is a new link layer protocol with the aim of being able to support Quality of Service (QoS) in multi-hop operati...
Rui Zhao, Bernhard Walke, Michael Einhaus
SAC
2009
ACM
14 years 2 months ago
NECTAR: a DTN routing protocol based on neighborhood contact history
There are a number of scenarios where connectivity is intermittent, and a given destination may not be reachable at the moment a message is sent. Networks with these characteristi...
Etienne C. R. de Oliveira, Célio V. N. de A...
AINA
2007
IEEE
14 years 1 months ago
A Testbed with a Practical Smart Antenna for Directional MAC Protocols in Ad hoc Networks
Recently, several MAC protocols using directional antennas have been proposed for ad hoc networks, which are mainly evaluated by computer simulations. This paper develops a MAC pr...
Hikaru Mitsuhashi, Masahiro Watanabe, Sadao Obana,...
ICT
2004
Springer
127views Communications» more  ICT 2004»
14 years 28 days ago
An Interference Avoidance Technique for Ad Hoc Networks Employing Array Antennas
Array antennas have the potential to increase the capacity of wireless networks, but a distributed beamforming algorithm for maximizing the capacity in asynchronous, decentralized ...
T. Hunziker, Jacir Luiz Bordim, T. Ohira, Shinsuke...