Energy-Efficient Rate Allocation for Multi-Homing Services in Heterogeneous Wireless Access Networks

Hyeontaek OH, Joohyung LEE, Seong Gon CHOI, Jun Kyun CHOI

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Summary :

Bandwidth aggregation (BAG) techniques have been researched for many years in an efforts to enhance throughput for multi-homed streaming service. However, despite of the considerable attention being devoted towards energy-efficient communications, the power efficiency for BAG has not been considered yet. To improve the power efficiency in multi-homed streaming service, this paper proposes Power Minimized Rate Allocation Scheme (PMRAS) with optimal rate allocation at each interface while guaranteeing an allowable packet loss rate. In developing PMRAS, we first formulate a power consumption model based on the network interface state (i.e. active and idle state). We adopt a Lagrangian algorithm to solve the convex optimization problem of power consumption. The performance results gained from a numerical analysis and simulations (NS-2) reveal that the proposed scheme offers superior performance over the existing rate allocation scheme for BAG with guaranteed required quality of service.

Publication
IEICE TRANSACTIONS on Communications Vol.E97-B No.11 pp.2316-2326
Publication Date
2014/11/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E97.B.2316
Type of Manuscript
PAPER
Category
Energy in Electronics Communications

Authors

Hyeontaek OH
  Korea Advanced Institute of Science and Technology (KAIST)
Joohyung LEE
  Korea Advanced Institute of Science and Technology (KAIST)
Seong Gon CHOI
  Chungbuk Nat'l Univ.
Jun Kyun CHOI
  Korea Advanced Institute of Science and Technology (KAIST)

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