NDLI: A spectrum etiquette protocol and interference coordination for LTE in unlicensed bands (LTE-U)

Content Provider	IEEE Xplore Digital Library
Author	Hao Song Xuming Fang
Copyright Year	2015
Description	Author affiliation: Key Lab. of Inf. Coding & Transm., Southwest Jiaotong Univ., Chengdu, China (Hao Song; Xuming Fang)
Abstract	LTE in unlicensed bands (LTE-U) holds the promise of alleviating the licensed spectra scarcity and enhancing capacity by utilizing the unlicensed spectra. However, once LTE-U accesses an unlicensed band, there is almost no any opportunity for unlicensed systems (e.g. 802.11 WLAN) with inferior control abilities and CSMA/CA, to access that any more. In order to solve this unfair coexistence problem, we propose a spectrum etiquette protocol that restricts the priority of LTE-U and balances the extreme unfair competition. Besides, for engineering implementation of the proposed spectrum etiquette, an LTE-802.11 fusion protocol stack is designed for LTE-U. However, the restrictions of the spectrum etiquette would degrade the throughput of LTE-U on unlicensed spectra. Therefore, successive interference cancellation (SIC) is adopted to perform interference coordination for LTE-U. Moreover, we also study the problem of deriving the optimal lower power and the time length of each normal power transmission allocation strategy that maximizes the ergodic capacity of LTE-U under the proposed spectrum etiquette. The simulation study shows that the improved ergodic throughput of LTE-U can be achieved by our proposed interference coordination and the traffic need of 802.11 WLAN can be satisfied as much as possible under the proposed spectrum etiquette.
Starting Page	2338
Ending Page	2343
File Size	256839
Page Count	6
File Format	PDF
e-ISBN	9781467363051
DOI	10.1109/ICCW.2015.7247530
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-08
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless LAN Protocols Silicon carbide LTE-U 802.11 WLAN Interference Spectrum Etiquette Throughput Sensors Throughput Maximization SIC IEEE 802.11 Standard
Content Type	Text
Resource Type	Article

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