scholarly journals Comparison of Hybrid Firefly Algorithms for Power Allocation in a TV White Space Network

2019 ◽  
Vol 178 (38) ◽  
pp. 37-43
Author(s):  
Kennedy K. ◽  
George Kamucha ◽  
Tonny K.
Keyword(s):  
Power Allocation ◽  
White Space ◽  
Tv White Space ◽  
Space Network

Joint bandwidth and power allocation for multiple services in TV white space

2019 ◽  
Vol 13 (5) ◽  
pp. 569-577
Author(s):  
Zhong Tian ◽  
Jun Wang ◽  
Jintao Wang ◽  
Jian Song
Keyword(s):  
Power Allocation ◽  
White Space ◽  
Tv White Space ◽  
Multiple Services

scholarly journals Proportional Fair Power Allocation for Secondary Transmitters in the TV White Space

2013 ◽  
Vol 2013 ◽  
pp. 1-8
Author(s):  
Konstantinos Koufos ◽  
Riku Jäntti
Keyword(s):  
Computational Complexity ◽  
Power Allocation ◽  
Spectrum Allocation ◽  
Primary System ◽  
White Space ◽  
Tv White Space ◽  
Performance Loss ◽  
The Cost ◽  
Allocation Algorithms ◽  
Modified Algorithm

The key bottleneck for secondary spectrum usage is the aggregate interference to the primary system receivers due to simultaneous secondary transmissions. Existing power allocation algorithms for multiple secondary transmitters in the TV white space either fail to protect the TV service in all cases or they allocate extremely low power levels to some of the transmitters. In this paper, we propose a power allocation algorithm that favors equally the secondary transmitters and it is able to protect the TV service in all cases. When the number of secondary transmitters is high, the computational complexity of the proposed algorithm becomes high too. We show how the algorithm could be modified to reduce its computational complexity at the cost of negligible performance loss. The modified algorithm could permit a spectrum allocation database to allocate near optimal transmit power levels to tens of thousands of secondary transmitters in real time. In addition, we describe how the modified algorithm could be applied to allow decentralized power allocation for mobile secondary transmitters. In that case, the proposed algorithm outperforms the existing algorithms because it allows reducing the communication signalling overhead between mobile secondary transmitters and the spectrum allocation database.

Firefly algorithm based power control in wireless TV white space network

2017 ◽  
Author(s):  
Ronoh Kennedy ◽  
Kamucha George ◽  
Okelo-Odongo William ◽  
Olwal Thomas ◽  
Omwansa Tonny
Keyword(s):  
Power Control ◽  
Firefly Algorithm ◽  
White Space ◽  
Tv White Space ◽  
Space Network

TV White Space Network Trials

2018 ◽  
pp. 121-149
Author(s):  
Juha Kalliovaara ◽  
Jarkko Paavola ◽  
Reijo Ekman ◽  
Arto Kivinen ◽  
Pekka Talmola
Keyword(s):  
White Space ◽  
Tv White Space ◽  
Space Network

scholarly journals Power Allocation in the TV White Space under Constraint on Secondary System Self-Interference

2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
Byungjin Cho ◽  
Konstantinos Koufos ◽  
Kalle Ruttik ◽  
Riku Jäntti
Keyword(s):  
Power Allocation ◽  
Power Level ◽  
Allocation Rule ◽  
Transmission Power ◽  
Allocation Scheme ◽  
White Space ◽  
Secondary System ◽  
Cell Border ◽  
Tv White Space ◽  
Secondary Network

The Electronic Communication Committee (ECC) in Europe proposed a location-based transmission power allocation rule for secondary devices operating in the TV white space (TVWS). The further the secondary device is located from the TV cell border the higher transmission power level it can utilize. The Federal Communication Committee (FCC) in the US proposed a fixed transmission power allocation rule for all secondary transmitters. Both rules do not consider the secondary system’s self-interference while setting the transmission power levels. In this paper, we propose a power allocation scheme for a cellular secondary system. Unlike the ECC and the FCC proposals we do the power allocation by considering the self-interference. We define the power allocation scheme as an optimization problem. The sum cell border data rate of the secondary network is selected to be the optimization objective. We observe that the optimal transmission power levels become approximately constant over the secondary deployment area. The FCC rule captures the general trend for cellular deployment in the TVWS, since it suggests the use of constant power. However, the transmission power should not be set equal to 4 W but according to the allowable generated interference at the borders of the TV and secondary cells.

Performance Analysis of Dual 5 GHz WiFi and UHF TV White Space Network Links

2019 ◽  
Author(s):  
Mokwape M. Lamola ◽  
David L. Johnson ◽  
Albert A. Lysko ◽  
Melissa Densmore ◽  
Richard Maliwatu
Keyword(s):  
Performance Analysis ◽  
White Space ◽  
Tv White Space ◽  
Space Network ◽  
Network Links ◽  
5 Ghz
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