Proceedings ArticleDOI
LTE UL Power Control for the Improvement of LTE/Wi-Fi Coexistence
Fabiano Chaves,Erika Portela Lopes de Almeida,Robson D. Vieira,Andre Mendes Cavalcante,Fuad Mousse Abinader,Sayantan Choudhury,Klaus Doppler +6 more
- pp 1-6
TLDR
The proposed LTE UL power control with interference aware power operating point is a flexible tool to deal with the trade-off between LTE and Wi-Fi performances in coexistence since it is able to set different LTE/Wi-Fi coexistence configurations with the choice of a single parameter.Abstract:
Spectrum sharing is a powerful alternative to deal with the exponential increase on the wireless communication capacity demand In this context, the coexistence of two of the most prominent wireless technologies today, Long Term Evolution (LTE) and Wi-Fi, is an important research topic In the most common Wi-Fi network operation, the Distributed Coordination Function (DCF), communication nodes access the channel only if the interference level is below a certain threshold Then, Wi-Fi operation is severely affected when in coexistence with LTE This paper proposes the use of LTE uplink (UL) power control to improve LTE/Wi-Fi coexistence With the introduction of an additional factor to the conventional LTE UL power control, a controlled decrease of LTE UL transmit powers is carried out according to interference measurements, giving opportunity to Wi-Fi transmissions The proposed LTE UL power control with interference aware power operating point is a flexible tool to deal with the trade-off between LTE and Wi-Fi performances in coexistence, since it is able to set different LTE/Wi-Fi coexistence configurations with the choice of a single parameter Simulation results show that the proposed approach can provide similar or better performance for both LTE and Wi-Fi networks than a previously proposed interference avoidance mechanismread more
Citations
More filters
Journal ArticleDOI
LTE-unlicensed: the future of spectrum aggregation for cellular networks
TL;DR: Simulation results demonstrate that LTE-U can provide better user experience to LTE users while well protecting the incumbent WiFi users' performance compared to two existing advanced technologies: cellular/WiFi interworking and licensed-only heterogeneous networks (Het-Nets).
Journal ArticleDOI
Enabling the coexistence of LTE and Wi-Fi in unlicensed bands
Fuad Mousse Abinader,Erika Portela Lopes de Almeida,Fabiano Chaves,Andre Mendes Cavalcante,Robson D. Vieira,Rafael C. D. Paiva,Angilberto M. Sobrinho,Sayantan Choudhury,Esa Tuomaala,Klaus Doppler,Vicente A. de Sousa +10 more
TL;DR: The issues that arise from the concurrent operation of LTE and Wi-Fi in the same unlicensed bands from the point of view of radio resource management are discussed and it is shown that Wi-fi is severely impacted by LTE transmissions.
Journal ArticleDOI
Coexistence of LTE-LAA and Wi-Fi on 5 GHz With Corresponding Deployment Scenarios: A Survey
TL;DR: This paper provides a comprehensive survey of the coexistence of LTE-LAA and Wi-Fi on 5 GHz with corresponding deployment scenarios, and explores a relatively smooth technical route for solving coexistence-related problems.
Proceedings ArticleDOI
Downlink Performance Analysis of LTE and WiFi Coexistence in Unlicensed Bands with a Simple Listen-Before-Talk Scheme
TL;DR: Using this framework, theoretical models based on Markov chains are established for both systems and downlink throughput can be calculated and numerical results show that the simple listen-before-talk scheme is very effective in LAA and LAA coexistence scenario and can improve WiFi performance substantially.
Proceedings ArticleDOI
Coordinated Dynamic Spectrum Management of LTE-U and Wi-Fi Networks
TL;DR: In this paper, the authors investigated the coexistence of Wi-Fi and LTE in emerging unlicensed frequency bands which are intended to accommodate multiple radio access technologies and showed that both networks cause significant interference to each other and that the degradation is dependent on power levels and physical topology.
References
More filters
Proceedings ArticleDOI
License-exempt LTE deployment in heterogeneous network
Rapeepat Ratasuk,Mikko A. Uusitalo,Nitin Mangalvedhe,Antti Sorri,Sassan Iraji,Carl Wijting,Amitava Ghosh +6 more
TL;DR: This paper investigates deploying LTE on a license-exempt band as part of the pico-cell underlay and shows that LTE can deliver significant capacity even while sharing the spectrum with WiFi systems.
Proceedings ArticleDOI
Enabling coexistence of heterogeneous wireless systems: case for ZigBee and WiFi
Xinyu Zhang,Kang G. Shin +1 more
TL;DR: An analytical framework is established that relates its key design parameters to performance and cost and demonstrates CBT's significant throughput improvement over the legacy ZigBee protocol, with negligible performance loss to WiFi.
Journal Article
Experimental validation of a coexistence model of IEEE 802.15.4 and IEEE 802.11b/g networks.
TL;DR: In this paper, the authors proposed a coexistence model of IEEE 802.15.4 and 802.11b/g networks, which addresses coexistence behavior and explains their coexistence performance.
Closed loop power control for LTE uplink
TL;DR: In this article, a radio resource control algorithm for the closed loop power control in the LTE uplink was designed, implemented, and tested for a simple upload traffic model and the closed-loop power control with fractional path loss compensation factor improved the system performance in terms of mean bit rate by 68% in the ideal case and 63% in realistic case.
Journal ArticleDOI
Experimental Validation of a Coexistence Model of IEEE 802.15.4 and IEEE 802.11b/g Networks
TL;DR: A coexistence model of IEEE 802.15.4 and IEEE802.11b/g networks is proposed, which addresses their coexistence behavior and explains their coexist performance.