Joint Rate-and-Power Allocation for Multi-channel Spectrum Sharing Networks with Balanced QoS Provisioning and Power Saving

2009 ◽  
Vol 14 (2) ◽  
pp. 198-209 ◽  
Author(s):  
Yuan Wu ◽  
Danny H. K. Tsang
Keyword(s):  
Power Allocation ◽  
Spectrum Sharing ◽  
Power Saving ◽  
Qos Provisioning

scholarly journals Statistical Delay QoS Provisioning for Energy-Efficient Spectrum-Sharing Based Wireless Ad Hoc Sensor Networks

2016 ◽  
Vol 2016 ◽  
pp. 1-13
Author(s):  
Yichen Wang ◽  
Wenwen Xu
Keyword(s):  
Energy Efficiency ◽  
Power Allocation ◽  
Spectrum Sharing ◽  
Ad Hoc ◽  
Average Energy ◽  
Optimal Power Allocation ◽  
Qos Provisioning ◽  
Optimal Power ◽  
Statistical Delay ◽  
Qos Requirement

In this paper, we develop the statistical delay quality-of-service (QoS) provisioning framework for the energy-efficient spectrum-sharing based wireless ad hoc sensor network (WAHSN), which is characterized by thedelay-bound violation probability. Based on the established delay QoS provisioning framework, we formulate the nonconvex optimization problem which aims at maximizing the average energy efficiency of the sensor node in the WAHSN while meeting PU’s statistical delay QoS requirement as well as satisfying sensor node’s average transmission rate, average transmitting power, and peak transmitting power constraints. By employing the theories offractional programming,convex hull, andprobabilistic transmission, we convert the original fractional-structured nonconvex problem to theadditively structured parametric convex problemand obtain the optimal power allocation strategy under the given parameter via Lagrangian method. Finally, we derive the optimal average energy efficiency and corresponding optimal power allocation scheme by employing theDinkelbach method. Simulation results show that our derived optimal power allocation strategy can be dynamically adjusted based on PU’s delay QoS requirement as well as the channel conditions. The impact of PU’s delay QoS requirement on sensor node’s energy efficiency is also illustrated.

On Proportional Fairness in Power Allocation for Two-Tone Spectrum-Sharing Networks

2016 ◽  
Vol 65 (12) ◽  
pp. 10090-10096 ◽  
Author(s):  
Chongtao Guo ◽  
Bin Liao ◽  
Lei Huang ◽  
Peichang Zhang ◽  
Min Huang ◽  
...  
Keyword(s):  
Power Allocation ◽  
Spectrum Sharing ◽  
Proportional Fairness

Spectrum Sharing and Power Allocation Analysis in Machine to Machine Network

2012 ◽  
Vol 7 (19) ◽  
pp. 242-250
Author(s):  
Haipeng Yao ◽  
Wenbo Wang ◽  
Yunjie Liu ◽  
Zhijiang Zhang
Keyword(s):  
Power Allocation ◽  
Spectrum Sharing ◽  
Machine To Machine
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