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Singh, Gursharanjeet
- Audio Watermarking Algorithm Having Low Time Complexity Using Random Carrier Selection
Abstract Views :154 |
PDF Views:4
Authors
Affiliations
1 Lovely Professional University, Phagwara District, Jalandhar, Punjab, IN
2 DAV Institute of Engineering and Technology, Jalandhar, Punjab, IN
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.- Time Domain Optimization using Hadamard Matrix Based Phase Sequence and DCT with Classic Frequency Domain Partition Partial Transmitted Sequence(CFDP-PTS) Scheme for the Reduction of Peak to Average Power Ratio (PAPR) in OFDM System
Abstract Views :141 |
PDF Views:0
Authors
Affiliations
1 School of ECE, Lovely Professional University, Phagwara - 144411, Punjab, IN
1 School of ECE, Lovely Professional University, Phagwara - 144411, Punjab, IN
Source
Indian Journal of Science and Technology, Vol 9, No 47 (2016), Pagination:Abstract
Partial transmitted sequence (PTS) is the most important technique for the minimization of problem peak to average power ratio (PAPR) found in multicarrier system i.e., Orthogonal Frequency Division Multiplexing (OFDM). But PTS scheme undergo a very difficult and complex process of designing random phase sequences which are used for optimization of subblocks of data stream in time domain after applying Inverse Fast Fourier Transform (IFFT) so that the problem PAPR can be minimized. Hence in this paper we are proposing a technique in which we have used hadamard matrix for the optimization of sub-blocks of data stream in time domain after IFFT along with discrete cosine transform. So this proposed technique drastically reduced the complexity of designing phase sequence and help in recovering the same information back at the receiver side with the help of index of individual rows of hadamard matrix. Simulation results are presented under multiple sub carriers (N)=64,128 and 256, classic frequency domain partition partial transmitted sequence(CFDP-PTS)=3 and 4 shows a significant gain (dB)of around 3.8 and 1.4 in comparison of conventional OFDM system and traditional PTS technique respectively under N=128 and CFDP=4.Keywords
Classic Frequency Domain Partition Partial Transmitted Sequence (CFDP-PTS), Complementary Cummulative Distributive Function (CCDF), Peak to Average Power Ratio (PAPR)- Enhanced VHD Making Algorithm for 4G Heterogeneous Networks
Abstract Views :154 |
PDF Views:0
Authors
Affiliations
1 Department of Electronics and Communication Engineering, Lovely Professional University, Phagwara, Punjab -144411, IN
2 Department of Computer Science and Engineering, Lovely Professional University, Phagwara, Punjab-144411, IN
1 Department of Electronics and Communication Engineering, Lovely Professional University, Phagwara, Punjab -144411, IN
2 Department of Computer Science and Engineering, Lovely Professional University, Phagwara, Punjab-144411, IN
Source
Indian Journal of Science and Technology, Vol 9, No 47 (2016), Pagination:Abstract
In next generation wireless system such as Long Term Evolution (LTE) and Worldwide Interoperability Microwave Access (WIMAX) the major issue is to maintain the quality of service of a network. User required always best connected services anytime and anywhere. Due to increase in number of user on particular network, load is increased on a network. Due to high load handover is required but in many situations unnecessary handoff and handoff failure is initiated, which lags the performance of a network. To overcome this problem we have used RSS vertical handover decision method with some additional parameters to improve the performance in 4G heterogeneous networks.Keywords
LTE, RSS, Vertical Handoff Decision Algorithms, WIMAX.- Efficient Video Watermarking Technique for Quality Loss of Data
Abstract Views :140 |
PDF Views:0
Authors
Affiliations
1 Department of Computer Science and Engineering, Lovely Professional University, Phagwara - 144411, Punjab, IN
2 Department of Electronics and Communication, Lovely Professional University, Phagwara - 144411, Punjab, IN
1 Department of Computer Science and Engineering, Lovely Professional University, Phagwara - 144411, Punjab, IN
2 Department of Electronics and Communication, Lovely Professional University, Phagwara - 144411, Punjab, IN