Title
LTE UL Power Control for the Improvement of LTE/Wi-Fi Coexistence
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 mechanism.
Year
DOI
Venue
2013
10.1109/VTCFall.2013.6692275
Vehicular Technology Conference
Keywords
Field
DocType
Long Term Evolution,power control,radio spectrum management,radiofrequency interference,telecommunication control,wireless LAN,LTE UL power control,LTE Wi-Fi coexistence,LTE uplink power control,interference avoidance,interference aware power operating point,long term evolution,spectrum sharing
Radio resource management,Wireless,Computer science,Operating point,Power control,Computer network,Communication channel,Electronic engineering,Distributed coordination function,Interference (wave propagation),Telecommunications link
Conference
ISSN
Citations 
PageRank 
1090-3038
28
3.59
References 
Authors
5
7
Name
Order
Citations
PageRank
Fabiano de S. Chaves116014.37
Erika P. L. Almeida216216.37
Robson D. Vieira321322.42
André Cavalcante418217.47
Fuad M. Abinader Jr.516215.49
Sayantan Choudhury628125.40
Klaus Doppler71723153.67