Paper Info
Title
A resource allocation scheme to achieve fairness in TH-UWB sensor networks with near-far effects
Abstract
The inherent near-far effect in wireless networks causes nodes that are further away from the receiver to suffer from throughput degradation, as packets from nodes that are nearer are typically received with greater signal strengths. This unfair situation is traditionally overcome by power control. However, when power control is not feasible, for example in tiny sensor nodes with power-limited batteries, alternative solutions have to be utilized to achieve fairness in the network. In this paper, we propose U-LiBRA - an UWB Location Based Resource Allocation scheme to alleviate the contention between near and far nodes in a TH-UWB sensor network. U-LiBRA allocates different time slots to nodes that are at varying distances from the receiver, so that nodes that are further away from the receiver can achieve higher throughput than what they would typically obtain under the influence of the near-far effect. Simulation results show that U-LiBRA can effectively mitigate the near-far effect and improve fairness in the absence of power control.
Year
DOI
Venue
2008
10.1109/PIMRC.2008.4699480
PIMRC
Keywords
Field
DocType
resource allocation,ultra wideband communication,wireless sensor networks,TH-UWB sensor networks,U-LiBRA,near-far effects,power control,power-limited batteries,resource allocation scheme,tiny sensor nodes,wireless networks
Resource management,Key distribution in wireless sensor networks,Wireless network,Computer science,Power control,Network packet,Computer network,Real-time computing,Resource allocation,Throughput,Wireless sensor network
Conference
Citations 
PageRank 
References 
0
0.34
6
Authors
6
Name
Order
Citations
PageRank
ghasem naddafzadeh shirazi1777.79
Peng Yong Kong213318.92
Hwee Xian Tan311211.26
Ranjeet Kumar Patro4324.55
Mun Choon Chan5113097.54
Chen-Khong Tham692582.63