NDLI: Novel cognitive mobile router and its efficient use in a heterogeneous wireless network

Content Provider	IEEE Xplore Digital Library
Author	Yamazaki, K. Fujimoto, T. Imagaki, Y. Kashiki, K. Yamaguchi, A.
Copyright Year	2012
Description	Author affiliation: KDDI R&D Laboratories Inc. 2-1-15 Ohara Fujimino City, Saitama Prefecture 356-8502, Japan (Yamazaki, K.; Fujimoto, T.; Imagaki, Y.; Kashiki, K.; Yamaguchi, A.)
Abstract	In this paper, we discuss the efficient use of a mobile router with multiple radio access technologies (RATs), called a cognitive mobile router (C-MR). In a heterogeneous wireless network, where various infrastructure-based RATs have already been deployed, C-MR selects a high quality RAT from among those available and provides a high quality mobile communication to connecting Wi-Fi user terminals. However, considering the significant growth in mobile data traffic, a huge amount of mobile data passes through C-MR and critical packet losses may occur due to its limited computational resources. Moreover, if the quality of the selected RAT is insufficient, incoming packets are stacked in C-MR and this leads to performance degradation due to packet loss, timeout and so forth. In this paper, we propose two novel schemes to avoid such redundant performance degradation, one is a novel packet queuing scheme that operates such a huge amount of mobile data traffic properly even with the limited computational resources. The other is an energy-efficient and accurate RAT quality selection method that avoids miss-selection of a suitable RAT. Through computer simulations, we have confirmed that C-MR deployment can realize more 40% packets delivery with higher priority compared with the no C-MR situation even while maintaining lower infrastructure load and lower power consumption of user terminals.
Starting Page	344
Ending Page	349
File Size	1232317
Page Count	6
File Format	PDF
ISBN	9781457713781
e-ISBN	9781457713798
DOI	10.1109/IWCMC.2012.6314228
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-08-27
Publisher Place	Cyprus
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power demand IEEE 802.11 Standards mobile router cognitive Rats heterogeneous wireless network Mobile communication Batteries Internet Mobile computing
Content Type	Text
Resource Type	Article

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