Work

Delay-Guaranteed Admission Control for LAA Coexisting With WiFi

Year: 2019

Type: article

Abstract: Licensed-assisted-access (LAA) is used to extend the LTE link into the unlicensed band. How to guarantee the quality-of-service (QoS) for LTE devices in the unlicensed band is a challenging problem due to the listen-before-talk contention access in 5-GHz unlicensed bands. In this letter, we quantitatively analyze the medium access control delay for tagged LAA eNBs and propose a delay-guaranteed admission control scheme. We consider the freezing time of busy slots caused by collision or successful transmission, and introduce the exponential backoff mechanism for delay analysis. Validated by simulation results, our method provides important insights into the system admission performance and fairness of access.

Source: IEEE Wireless Communications Letters

DOI: 10.1109/lwc.2019.2905206

Authors: Weiwei Zhou, Gordon J. Sutton, J. Andrew Zhang, Ren Ping Liu, Su Pan

Institutions: University of Technology Sydney, Nanjing University of Posts and Telecommunications

Language: English

Topic: Wireless Networks and Protocols

Subfield: Computer Networks and Communications

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2922016256

FWCI: 0.509

Cites: 5

Cited by: 4

Related to: 10