Title :
Distributed throughput maximization in wireless networks via random power allocation
Author :
Lee, Hyang-Won ; Modiano, Eytan ; Le, Long Baa
Author_Institution :
Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
We consider throughput-optimal power allocation in multi-hop wireless networks. The study of this problem has been limited due to the non-convexity of the underlying optimization problems, that prohibits an efficient solution even in a centralized setting. We take a randomization approach to deal with this difficulty. To this end, we generalize the randomization framework originally proposed for input queued switches to an SINR rate-based interference model. Further, we develop distributed power allocation and comparison algorithms that satisfy these conditions, thereby achieving (nearly) 100% throughput. We illustrate the performance of our proposed power allocation solution through numerical investigation and present several extensions for the considered problem.
Keywords :
queueing theory; radio networks; resource allocation; SINR rate-based interference model; distributed power allocation; distributed throughput maximization; input queued switches; multihop wireless networks; numerical investigation; optimization problems; random power allocation; randomization approach; resource allocation; Interference; Optimal scheduling; Resource management; Signal to noise ratio; Spread spectrum communication; Stability; Telecommunication traffic; Throughput; Traffic control; Wireless networks; Power allocation; SINR interference model; capacity region; graph-based interference model; wireless scheduling;
Conference_Titel :
Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, 2009. WiOPT 2009. 7th International Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-4919-4
Electronic_ISBN :
978-1-4244-4920-0
DOI :
10.1109/WIOPT.2009.5291606