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Ahuja, Kiran
- QoS Aware Topology Management of MANET for Cooperative Communication
Authors
1 Global Institute of Management and Emerging Technologies, Amritsar, 143001, IN
2 DAV Institute of Engineering and Technology, Jalandhar-144001, IN
Source
Wireless Communication, Vol 7, No 1 (2015), Pagination: 5-10Abstract
Cooperative Communication (CC) is a technique that allows no. of nodes to simultaneously transmit the data with the adjacent nodes antenna. It can save power and extend transmission coverage. Topology control objectives to maintain a topology that improve network performance by minimizing energy consumption. In this paper, we evaluate the performance of OLSR based topology control network under highly dynamic environment. From the simulation results, the QoS performance of proposed criterion under different scenario is good.
Keywords
Cooperative Communication, Topology Control, Connectivity.
- Multiuser Traffic Capacity Estimation using Optimum Utilization in Mobile WiMAX
Authors
1 DAV Institute of Engineering and Technology - DAVIET, PTU Regional Campus, Jalandhar, IN
2 ECE Dept., DAV Institute of Engineering and Technology - DAVIET College, Jalandhar, IN
Source
Wireless Communication, Vol 1, No 7 (2009), Pagination: 319-324Abstract
The main purpose of this paper is to the make the fundamentals of continued growth of broadband wireless sound. The opportunity for BWA/WiMAX to serve those who want to switch to broadband service is huge in many parts of the world where wire line technologies may not be feasible. In wireless channel air link is the most expensive than other system resources and therefore the controlling system element related to capacity in wireless access networks is the main area of consideration. For this we are tryingto implement the entire algorithm for different system parameter and traffic cases to ease the Mobile WiMAX planning problem. The DL:UL ratio assignment was done in an efficient way to provide both directions with the required capacity i. e. 104 users in 10 MHz bandwidth and 216 users in 20 MHz bandwidth.
Keywords
Adaptive Modulation and Coding, IEEE-802. 16e, Mobile WiMAX, OFDMA.- Coverage Prediction Modeling for Mobile Radio Systems Operating in 900 MHZ Frequency Range
Authors
1 Department of Electronics and Communication Engineering, Dronacharya College of Engineering & Technology, Khentawas, Gurgaon, IN
2 DAV Institute of Engineering & Technology, Jalandhar, Punjab, IN
Source
Programmable Device Circuits and Systems, Vol 3, No 1 (2011), Pagination: 24-27Abstract
In this paper we had reported the comparison of Okumura and Hata extended prediction models in different environments at frequency 900 MHz on the basis of path loss vs. distance. Measurements were made to verify the models for open, sub urban and urban environments. A comparison between the Okumura model and Hata extended prediction model reveals that Okumura’s model is very accurate in cluttered environments, but responds slowly to rapid changes in terrain. The Hata extended model formulation makes the Okumura model much easier to use. It is mainly applicable to the transmissions inside cities.Keywords
Propagation Models, Path Loss, Power Loss, and Signal Attenuation.- Audio Watermarking Algorithm Having Low Time Complexity Using Random Carrier Selection
Authors
1 Lovely Professional University, Phagwara District, Jalandhar, Punjab, IN
2 DAV Institute of Engineering and Technology, Jalandhar, Punjab, IN
Source
Digital Image Processing, Vol 1, No 8 (2009), Pagination: 320-326Abstract
A novel audio watermarking algorithm is proposed in this paper for audio copyright protection. This algorithm embeds the watermark data into original audio signal using DCT and choosing random carrier which yields the high PSNR as 61.56 dB. By choosing random carriers instead of fixed, protects the watermark from the common attacks like compression, re-quantization, echo effect, cropping and low pass filtering with high PSNR. Audio watermarking shows low embedding time with our algorithm which is a basic requirement for real time processing. In addition an ASCII key is also provided to enhance the protection of the watermark.Keywords
DCT, Random Carrier, Audio Watermarking.- Performance Evaluation of Wireless Mesh Network (IEEE 802.11s)
Authors
Source
Wireless Communication, Vol 8, No 5 (2016), Pagination: 191-195Abstract
Wireless mesh technology is one of the most advanced technologies and can be viewed as the technology of the future. A Wireless Mesh Network (WMN) has been formed by connection of number of wireless access points. It is designed to communicate between nodes using the air interface organized in mesh topology and it is a self-forming, self-configuring and multi-hop network. In this paper, we have analyzed the performance of WMN in terms of average end to end delay, throughput and jitter by implementing the CBR (Constant Bit Rate) traffic between nodes. Results showed that number of packets transmitted has a direct influence on the QoS metrics of the WMN.
Keywords
WMN, CBR, Quality of Service (QoS), Mesh Point (MP), IEEE802.11s- Advanced Approach to Improve GSM Network QoS with Automatic Frequency Planning
Authors
Source
Wireless Communication, Vol 8, No 8 (2016), Pagination: 304-308Abstract
Frequency spectrum is the scarce resource and need to be optimally used in Global System for Mobile communication (GSM) network. Every operator has a limited frequency band & operator has to plan the network with this limited band. There are various methods for frequency planning. This paper proposes an innovative approach for Automatic Frequency Planning (AFP) for an existing network. In this method, dummy network same as running network is created and then calculated its interference on the basis of allocated frequencies. After calculating interference, automatic new frequency plan proposes to improve exiting interference in network. The proposed approach replaces the current tedious and inaccurate manual process. With this overall GSM network performance & interference reduces significantly.