@article{a4bb32efa4b3453d8cdfffd9abe0d396,
title = "SERO: A model-driven seamless roaming framework for wireless mesh network with multipath TCP",
abstract = "While modern wireless devices are capable of using multiple WiFi interfaces, the Multipath TCP (MPTCP) protocol has been employed to make full use of the capacity of many radios by enabling multiple path communication simultaneously. To provide exceptional mobility support in wireless networks, a key question is to determine the best handoff strategy to switch between access points or among WiFi/3G interfaces during roaming. In this paper, we propose SERO, a novel model-driven SEamless ROaming framework to optimize layer-2 handoff and vertical handoff for multihomed devices using MPTCP. The proposed framework adopts a measurement-based method to derive the TCP throughput model for wireless communication during handoff. Based on the throughput model, we propose a hybrid handoff strategy that uses multiple WiFi interfaces for data transmission and employs 3G augmentation to bridge the network interruption caused by handoff and to guarantee the total throughput above a predefined threshold for roaming devices. We implement the SERO framework in a real-deployed wireless mesh network testbed, and evaluate its performance by extensive experiments, which shows that SERO achieves performance gain of 26%-180% compared with several existing handoff strategies.",
keywords = "multipath TCP, Seamless roaming, wireless mesh network",
author = "Chaojing Xue and Wenzhong Li and Lingfan Yu and Jiacheng Shang and Xu Chen and Sanglu Lu",
note = "Funding Information: This work was partially supported by the National Key R & D Program of China (Grant No. 2017YFB1001801), the National Natural Science Foundation of China (Grant Nos. 61672278, 61373128, 61321491), the science and technology project from State Grid Corporation of China (Contract No. SGSNXT00YJJS1800031), the Program for Guangdong Introducing Innovative and Enterpreneurial Teams (No.2017ZT07X355), the Collaborative Innovation Center of Novel Software Technology and Industrialization, and the Sino-German Institutes of Social Computing. Funding Information: Manuscript received May 30, 2018; revised September 18, 2018; accepted October 31, 2018. Date of publication November 12, 2018; date of current version February 14, 2019. This work was partially supported by the National Key R&D Program of China (Grant No. 2017YFB1001801), the National Natural Science Foundation of China (Grant Nos. 61672278, 61373128, 61321491), the science and technology project from State Grid Corporation of China (Contract No. SGSNXT00YJJS1800031), the Program for Guangdong Introducing Innovative and Enterpreneurial Teams (No.2017ZT07X355), the Collaborative Innovation Center of Novel Software Technology and Industrialization, and the Sino-German Institutes of Social Computing. The associate editor coordinating the review of this paper and approving it for publication was J. Luo. (Corresponding author: Wenzhong Li.) C. Xue, W. Li, L. Yu, and S. Lu are with the State Key Laboratory for Novel Software Technology, Nanjing University, Nanjing 210023, China (e-mail: lwz@nju.edu.cn). Publisher Copyright: {\textcopyright} 1972-2012 IEEE.",
year = "2019",
month = feb,
doi = "10.1109/TCOMM.2018.2880785",
language = "English",
volume = "67",
pages = "1284--1296",
journal = "IEEE Transactions on Communications",
issn = "0090-6778",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "2",
}