Power Control Optimization for Position Tracking in Vehicle Network

2014 ◽  
Vol 721 ◽  
pp. 740-743
Author(s):  
Zhe Yang ◽  
Guo Zhen Tan ◽  
Fu Xin Zhang
Keyword(s):  
Nash Equilibrium ◽  
Power Control ◽  
Transmission Rate ◽  
Packet Transmission ◽  
Position Tracking ◽  
Transmission Power ◽  
Tracking Accuracy ◽  
Power Control Algorithm ◽  
Adaptive Power ◽  
Vehicle Network

We build an interference model to embody the influence from topological distribution, transmission power and packet transmission rate quantitatively. Then game theory is introduced. We take transmission power and position tracking accuracy as game strategy and payoff respectively. The existence of Nash equilibrium in vehicle network are proved. A Nash equilibrium is corresponding to the optimized transmission power vector for vehicles. Vehicle network self-adaptive power control algorithm (VNSPCA) is proposed to adjust transmission power in vehicle network. Finally, we conduct simulation and compare the performance of VNSPCA with MINPCA and MAXPCA.

An Adaptive Power Control Algorithm in RFID Systems

2014 ◽  
Vol 1049-1050 ◽  
pp. 1726-1729
Author(s):  
Jing Long ◽  
Jian Cheng Li ◽  
Li Ming Zheng
Keyword(s):  
Power Control ◽  
Control Algorithm ◽  
Wireless Channel ◽  
Transmission Power ◽  
Rfid Technology ◽  
Step Size ◽  
Rfid Systems ◽  
Channel Characteristic ◽  
Power Control Algorithm ◽  
Adaptive Power

Nowadays, RFID technology has been widely spread in various fields. However, the situation of the reader-to-reader collision, caused by movements of readers, is becoming more and more prominent. To solve this problem, this paper proposes an adaptive power control algorithm based on the SNR-measurements method, which uses the Kalman filtering algorithm to estimate the wireless channel characteristic at first, and then adjusts the transmission power of the reader variously according to both channel estimated results and SNR histories, which determines the step size. As shown in simulation results, the algorithm proposed could avoid reader-collision effectively. The algorithm not only provides improvements on real-time ability as well as reliability, but also improves the throughput and precision of identifying tags.

Design for Power Control in Wireless Ad Hoc Networks

2011 ◽  
Vol 403-408 ◽  
pp. 2901-2904
Author(s):  
Jin Wei Xia
Keyword(s):  
Power Consumption ◽  
Power Control ◽  
Wireless Ad Hoc Networks ◽  
Ad Hoc ◽  
Packet Transmission ◽  
Transmission Power ◽  
Control Protocol ◽  
Received Power ◽  
Hidden Terminal ◽  
Wireless Nodes

Analysised and researched for the power control problem in Ad Hoc network, and Proposed an improved power control protocol based on 802.11MAC layer of CSMA /CA mechanism . The algorithm increased the transmission power value and the received power threshold in the RTS/CTS control packets, the node and its adjacent node can determined the data packet transmission power and received power accorded it, Thus effectively reduced the nodes between the hidden terminal and exposed terminal interference, and can reduced the power consumption of wireless nodes. It is compared with the IEEE 802.11 MAC protocol by simulation. The results show that the power control protocol can improve the system end to end throughput performance, and minimize the power consumption of wireless nodes, so as to saved the network power consumption .

Adaptive power control algorithm in cognitive radio based on game theory

2015 ◽  
Vol 9 (15) ◽  
pp. 1807-1811 ◽  
Author(s):  
Guanglong Yang ◽  
Xiao Wang ◽  
Xuezhi Tan ◽  
Bin Li
Keyword(s):  
Game Theory ◽  
Cognitive Radio ◽  
Power Control ◽  
Control Algorithm ◽  
Power Control Algorithm ◽  
Adaptive Power

Inteference Mitigation in Femtocellular Networks

2014 ◽  
Vol 3 (2) ◽  
pp. 113 ◽  
Author(s):  
Amevi Acakpovi ◽  
Dominique Kogue ◽  
Koudjo Mawuefam Koumadi ◽  
Ibrahim Tahirou
Keyword(s):  
Power Control ◽  
Control Algorithm ◽  
Network Capacity ◽  
System Throughput ◽  
Negative Effects ◽  
Coverage Area ◽  
Power Control Algorithm ◽  
Overall Performance ◽  
Adaptive Power ◽  
The Impact

<span lang="EN-US">Femtocells can significantly boost up wireless cellular network capacity by reducing communication distances to user equipment and also by reusing resources already utilized in the macrocell network on which they overlay. However, the deployment of femtocells within a macrocell coverage area, causes severe interference between the femtocell and the macrocell, which may have an impact on the overall performance of the femtocells. Avoiding such interference is very important for the effective co-existence </span><span lang="EN-US">of femtocells and macrocell. This paper proposes an algorithm to mitigate cross-tier interference between </span><span lang="EN-US">a femtocell and a macrocell using adaptive power control. The proposed approach is modeled and simulated using MATLAB. The impact on the performance of the </span><span lang="EN-US">femtocell using the proposed algorithm </span><span lang="EN-US">is analysed. Results show that the proposed adaptive power control algorithm has tremendously reduced the negative effects on the system throughput, delay and outage probability for voice and data traffics.</span>

Sign in / Sign up

Export Citation Format

Share Document