Title :
Capacity Optimization in Networks with Heterogeneous Radio Access Technologies
Author :
Wu, Yiyue ; Viswanathan, Harish ; Klein, Thierry ; Haner, Mark ; Calderbank, Robert
Abstract :
As it becomes common for wireless service providers (WSP) to employ multiple heterogeneous radio access technologies (RAT), the management of the combined resources across multiple RATs arises as an important issue. The WSP´s objective is to assign different users to the different RATs so as to maximize network capacity (or total utility) while ensuring that individual users´ quality of service (QoS) requirements are met. In this paper, we consider this resource allocation problem for two scenarios: voice communication and video communication. For voice communication, we propose a stable and optimal assignment scheme based on the deferred acceptance algorithm for both static and online cases. For video communication, identifying the NP-hardness of the problem, we propose and compare a set of heuristic algorithms including a low-complexity, high-performance scheme.
Keywords :
communication complexity; optimisation; quality of service; radio access networks; resource allocation; telecommunication network management; video communication; voice communication; NP-hardness problem; WSP objective; capacity optimization; combined resource management; heuristic algorithm; low complexity high performance scheme; multiple heterogeneous radio access technology; network capacity maximization; optimal assignment scheme; radio access network; resource allocation problem; user quality of service requirement; video communication; voice communication; wireless service provider; Heuristic algorithms; Quality of service; Rats; Resource management; Signal to noise ratio; Streaming media; Wireless communication;
Conference_Titel :
Global Telecommunications Conference (GLOBECOM 2011), 2011 IEEE
Conference_Location :
Houston, TX, USA
Print_ISBN :
978-1-4244-9266-4
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2011.6134226
