Earticle

초록

영어

Underwater Acoustic (UWA) channels are known as some of the most challenging communication media. Since the Underwater acoustic channels are time varying multipath channel achieving the high data rate, a low latency and a high throughput which often is a very difficult objective. In this work, we designed an OFDM transceiver system which is suitable for underwater acoustic communication with limited bandwidth to enhance the data rate at the receiver. To enhance the data rate at the OFDM receiver we have used efficient adaptive modulation scheme, channel estimation and channel equalization schemes for UWA communication. We have focused on the efficient modulation schemes like QPSK, DPSK and 16-QAM which is best suited for adaptive techniques based on the SNR of the Rayleigh fading channel to enhance the data rate. The simulation results show that the performance of the OFDM system with the use of Adaptive modulation is better when compared to the OFDM system without Adaptive modulation schemes. Also we have used the Kalman filter for channel estimation which minimizes the mean squared error and gives us the best estimation even in the presence of noise. From the simulation results, we have found that these modulation techniques and channel estimation method are best suited to achieve high data rate for underwater acoustic communication.

목차

Abstract
 1. Introduction
 2. Proposed Work
 3. System Design and Methodology
  3.1. Kalman Filter based Channel Estimation
 4. Simulation Results and Discussion
  4.1. Simulation Parameters
  4.2. Algorithm Overview
  4.3. Simulation Results
 5. Conclusion and Future Work
 References

키워드

저자

• Ravi Kumar M G [ Research Assistant, Dept. of ECE, REVA University, Bengaluru, Karnataka, India ]
• Mrinal Sarvagya [ Professor, Dept. of ECE, REVA University, Bengaluru, Karnataka, India ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Future Generation Communication and Networking

• 간기

  격월간

• pISSN

  2233-7857

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605