Skip to main content
Article thumbnail
Location of Repository

Wise: energy-efficient interface selection on vertical handoff between 3G networks and WLANs

By Minji Nam, Nakjung Choi, Yongho Seok and Yanghee Choi

Abstract

Abstract — The integration of 3G networks and WLANs as complementary has begun to attract much attention in industry as well as academia. This topic is becoming a burning issue, and one of the key questions which it raises is how to support a seamless vertical handoff. This paper introduces a new interface selection algorithm for energy-efficient vertical handoff in tightly coupled systems capable of supporting seamless handoff. Our proposed scheme, Wise Interface SElection (WISE) switches the active network interface, after taking into consideration the characteristics of the network interface cards and the current level of data traffic, with the cooperation of the mobile terminals and network. Interface switching operates independently on both the downlink and the uplink for the purpose of energy conservation. We show through simulation that less energy is consumed with WISE than when only a 3G network or WLAN interface is used, resulting in a longer lifetime for the mobile terminals. In the case of TCP connections, additional throughput gain can also be obtained

Topics: Index Terms — Interface Selection, Vertical Handoff, Energy- Efficient, One-way Operation
Year: 2004
OAI identifier: oai:CiteSeerX.psu:10.1.1.135.4773
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://mmlab.snu.ac.kr/publica... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.