Adaptive Spectrum Sharing of LTE Co-existing with WLAN in Unlicensed Frequency Bands

TL;DR

This paper proposes an adaptive spectrum sharing mechanism for LTE and WLAN in unlicensed bands, dynamically allocating time resources based on WLAN traffic to improve coexistence performance.

Contribution

It introduces a novel adaptive co-existence mechanism that enhances LTE and WLAN coexistence by dynamically adjusting time resource allocation according to WLAN traffic load.

Findings

Improved WLAN throughput with adaptive sharing.

LTE performance remains stable under dynamic allocation.

Effective coexistence in unlicensed bands demonstrated.

Abstract

With the increase of wireless communication demands, licensed spectrum for long term evolution (LTE) is no longer enough. The research effort has focused on implementing LTE to unlicensed frequency bands in recent years, which unavoidably brings the problem of LTE co-existence with other existing systems on the same band. This paper proposes an adaptive co-existence mechanism for LTE and wireless local area networks (WLAN) to enable a significant system performance of WLAN while LTE does not lose much as well. LTE realizes the co-existence by allocating time resources dynamically according to the traffic load of WLAN system.