NDLI: An adaptive p-persistent CSMA scheme for LTE in unlicensed bands

Content Provider	IEEE Xplore Digital Library
Author	Baoan Jia
Copyright Year	2015
Description	Author affiliation: Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China (Baoan Jia)
Abstract	With the exponential growth of wireless data demand and the increasing scarcity of licensed spectrum, mobile network operators are considering extending the use of Long Term Evolution (LTE) into the unlicensed spectrum to offload their traffic. In the future, it is very likely that LTE will coexist with WiFi on the same unlicensed bands, such as the Industrial, Scientific and Medical (ISM) bands. However, coexistence issues arise when the two technologies overlap with each other. Existing simulation results show that LTE is slightly impacted by such coexistence while WiFi performance is severely degraded. In order to improve LTE/WiFi coexistence, we propose an adaptive p-persistent Carrier Sense Multiple Access (CSMA) scheme for LTE in unlicensed bands. With the introduction of an additional factor to the conventional p-persistent CSMA scheme, the probability of LTE accessing the unlicensed channels is dynamically varied according to the interference measurements. Simulation results show that the proposed LTE adaptive p-persistent CSMA scheme can provide a flexible tradeoff between LTE and WiFi when they coexist with each other.
Starting Page	1
Ending Page	5
File Size	2558751
Page Count	5
File Format	PDF
e-ISBN	9781467376877
DOI	10.1109/WCSP.2015.7341336
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Adaptation models Interference Throughput Sensors Multiaccess communication IEEE 802.11 Standard Long Term Evolution
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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