Spectral efficiency enhancement using multiaccess scheme in heterogeneous network

Yonghoon Choi, Khan Sohaib, Wan Choi, Seungmo Kim, Youngnam Han

Research output: Contribution to book or proceedingConference articlepeer-review

Abstract

In this paper, we propose a spectral efficiency enhancement algorithm through simultaneous accesses to heterogeneous networks, where a mobile station (MS) can simultaneously access different non-interfering networks with different radio access technologies (RATs). This simultaneous access (i.e., RAT diversity) is determined in terms of the distributed optimal solution, which implies that MSs can decide whether they connect with multiple RATs or not. To derive the optimal solution, we first show the advantages of multiaccess (MA) by an example in heterogeneous networks, and analyze the spectral efficiency of MA in multi-RAT system. Through our analysis and simulations, it is shown that the proposed algorithm is able to achieve the increase of spectral efficiency compare with vertical handoff (VHO) method, which selects only one network having the best channel quality. As a result, the proposed MA algorithm can be considered as a viable solution to get more spectral efficiency in heterogeneous environments.

Original languageEnglish
Title of host publicationProceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
DOIs
StatePublished - 2009
EventIEEE Vehicular Technology Conference - Anchorage, United States
Duration: Sep 20 2009Sep 23 2009
Conference number: 70
https://ieeexplore.ieee.org/servlet/opac?punumber=5377994 (Link to conference proceedings)

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Conference

ConferenceIEEE Vehicular Technology Conference
Abbreviated titleVTC
Country/TerritoryUnited States
CityAnchorage
Period09/20/0909/23/09
Internet address

Scopus Subject Areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Keywords

  • Heterogeneous network
  • Multi-RAT
  • Multiaccess
  • Simultaneous access
  • Spectral efficiency

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