Joint Power Control and Channel Assignment Algorithms for Wireless Ad Hoc Networks

2006 ◽  
pp. 270-279 ◽  
Author(s):  
Yuan Zhang ◽  
Shouning Qu
Keyword(s):  
Ad Hoc Networks ◽  
Power Control ◽  
Wireless Ad Hoc Networks ◽  
Channel Assignment ◽  
Ad Hoc ◽  
Joint Power ◽  
Hoc Networks ◽  
Joint Power Control

scholarly journals Utility-Based Joint Routing, Network Coding, and Power Control for Wireless Ad Hoc Networks

2011 ◽  
Vol 2011 ◽  
pp. 1-12 ◽  
Author(s):  
Kaiqian Ou ◽  
Yinlong Xu ◽  
Xiumin Wang ◽  
Wang Liu
Keyword(s):  
Ad Hoc Networks ◽  
Power Control ◽  
Network Coding ◽  
Wireless Ad Hoc Networks ◽  
Expected Utility ◽  
Ad Hoc ◽  
Multicast Routing ◽  
Optimal Algorithm ◽  
Joint Power ◽  
Hoc Networks

Energy saving and high delivery reliability are two essential metrics in wireless ad hoc networks. In this paper, we propose a joint power control and network coding (PCNC) scheme which regulates the transmission power to reduce the overall energy usage and uses network coding to improve reliability by reducing the number of packet retransmissions. To argue for PCNC scheme, we investigate both unicast and multicast routing scenarios. To evaluate routing optimality, we adopt expected utility as a metric, which integrates energy cost, reliability, and benefit value. Based on the expected utility, we explore the optimality in both unicast and multicast routing. For unicast routing, we propose an optimal algorithm. We show the NP-hardness of multicast routing problem, and also design a heuristic solution. Results from simulations demonstrate that PCNC improves the performance in terms of expected utility compared with existing techniques.

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