661 research outputs found
SIMPLE: Stable Increased-throughput Multi-hop Protocol for Link Efficiency in Wireless Body Area Networks
In this work, we propose a reliable, power efficient and high throughput
routing protocol for Wireless Body Area Networks (WBANs). We use multi-hop
topology to achieve minimum energy consumption and longer network lifetime. We
propose a cost function to select parent node or forwarder. Proposed cost
function selects a parent node which has high residual energy and minimum
distance to sink. Residual energy parameter balances the energy consumption
among the sensor nodes while distance parameter ensures successful packet
delivery to sink. Simulation results show that our proposed protocol maximize
the network stability period and nodes stay alive for longer period. Longer
stability period contributes high packet delivery to sink which is major
interest for continuous patient monitoring.Comment: IEEE 8th International Conference on Broadband and Wireless
Computing, Communication and Applications (BWCCA'13), Compiegne, Franc
Opportunistic Routing in Ad Hoc Networks: How many relays should there be? What rate should nodes use?
Opportunistic routing is a multi-hop routing scheme which allows for
selection of the best immediately available relay. In blind opportunistic
routing protocols, where transmitters blindly broadcast without knowledge of
the surrounding nodes, two fundamental design parameters are the node
transmission probability and the transmission spectral efficiency. In this
paper these parameters are selected to maximize end-to-end performance,
characterized by the product of transmitter density, hop distance and rate. Due
to the intractability of the problem as stated, an approximation function is
examined which proves reasonably accurate. Our results show how the above
design parameters should be selected based on inherent system parameters such
as the path loss exponent and the noise level.Comment: 5 pages, 8 figures, Submitted to IEEE GLOBECOM 201
GEAMS: a Greedy Energy-Aware Multipath Stream-based Routing Protocol for WMSNs
Because sensor nodes operate on power limited batteries, sensor
functionalities have to be designed carefully. In particular, designing
energy-efficient packet forwarding is important to maximize the lifetime of the
network and to minimize the power usage at each node. This paper presents a
Geographic Energy-Aware Multipath Stream-based (GEAMS) routing protocol for
WMSNs. GEAMS routing decisions are made online, at each forwarding node in such
a way that there is no need to global topology knowledge and maintenance. GEAMS
routing protocol performs load-balancing to minimize energy consumption among
nodes using twofold policy: (1) smart greedy forwarding and (2) walking back
forwarding. Performances evaluations of GEAMS show that it can maximize the
network lifetime and guarantee quality of service for video stream transmission
in WMSNs
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