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VHDL Implementation of MAC based DSSS-CDMA Protocol for Solving near Far Effect IN Ad-hoc Network
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 69 - Number 21 |
| Year of Publication: 2013 |
| Authors: Bramha Swaroop Tripathi, Monika Kapoor |
10.5120/12098-8302
|
Bramha Swaroop Tripathi, Monika Kapoor . VHDL Implementation of MAC based DSSS-CDMA Protocol for Solving near Far Effect IN Ad-hoc Network. International Journal of Computer Applications. 69, 21 ( May 2013), 38-45. DOI=10.5120/12098-8302
Abstract
In telecommunications, direct-sequence spread spectrum (DSSS) is a modulation technique like other spread spectrum technologies; transmitted signal takes up additional bandwidth than the data signal which modulates the carrier frequency. DS-CDMA is beneficial for Ad hoc network because it eliminates the requirement for any frequency or time-slot coordination. The main issue in DS-CDMA (Ad hoc network) is the hindrance of a near-far problem. There are two solutions available for reducing this near far effect, first is Power control and second is Medium access problem. In this paper, we focus on medium access problem, for this, we design multiple access interference (MAI) at the protocol level. The aim is that, use "VHDL implementation" for MAC Based DSSS CDMA design, which consist transmitter & receiver with MAC protocol of a Ad-hoc network, which prevent fast degradation of network throughput. In this design, used DPSK modulation technique is non-coherent and has higher BER performance than BPSK. VHSIC Hardware Description Language (HDL) was used for committal to writing of the design. Model Sim Edition 10. 2 C was used for functional simulation and logic verification. The Xilinx Synthesis Technology (XST) 14. 1 of Xilinx ISE tool was used for synthesis of this project.
References
- B. Sreedev,V. Vijaya,Ch. Kranthi Reeks,Rama Valupadasu and B. RamaRao Chunduri, 2011 "FPGA implementation of DSSS-CDMA Transmitter and receiver For adhoc networks" IEEE symposium on computer & Informatics.
- B. S. Tripathi, proff. Monika kapoor, Jan. 2013 "Review on DS SS CDMA Tx and Rx for Adhoc Network" International Journal of Advances in Engineering & Technology,Vol. 5, Issue 2, pp. 274-279.
- D. Torrieri, 2011 Principles of Spread-Spectrum Communication Systems, 2nd ed. Springer.
- Vandana khare,Dr. D. Srinivas rao, March 2011 "A QoS Based MAC Protocol For Wireless Ad-hoc"International Journal of Network Security & Its Applications (IJNSA).
- S. Weber, J. G. Andrews, and N. Jindal, December 2010 "An overview of the transmission capacity of wireless networks," IEEE Trans. Communication, vol. 58, pp. 3593–3604.
- B. Alawieh, Y. Zhang, C. Assi, and H. Mouftah, Third Quarter 2009 "Improving spatial reuse in multihop wireless networks – a survey," IEEE Commun. Surveys and Tutorials, vol. 11.
- M. Habib Ullah, Akhmad Unggul Priantoro, M. Jasim Uddin, ICCIT 2008 "Design and Construction of Direct Sequence Spread Spectrum CDMA Transmitter and Receiver" Proceedings of 11th International Conference on Computer and Information Technology .
- Hasan and J. G. Andrews, March 2007 "The guard zone in wireless ad hoc networks," IEEE Trans. Wireless Commun. , vol. 6, pp. 897–906.
- T. J. Tsai & J. W. Chen, Mar. 2005 "IEEE 802. 11 MAC protocol over wireless mesh networks: problems and perspectives", in Proc. Advanced Information Networking and Applications, 19th International Conference, Volume 2, pp. 60-63,
- M. Krunz, A. Muqattash, and S. -J. Lee, Sept. -Oct. 2004 "Transmission power control in wireless ad hoc networks: challenges, solutions, and open issues," IEEE Network, vol. 18, pp. 8-14.
- K. Fazel et S. Kaiser, 2003 "Multi-Carrier and Spread Spectrum Systems". John Wiley & Sons Ltd.
- Barbara Hughes and Vinny Cahill, 2003 "Towards Real-time Event-based Communication in Mobile Ad Hoc WirelessNetworks. " 2nd International Workshop on real-time LANs in the Internet Age.
- R. Ramanathan, J. Redi, 2002 "A brief overview of ad hoc networks: challenges and directions", IEEE Communications Magazine.
- T. Rappaport, , 2002 Wireless Communications: Principles and Practice, Prentice Hall, Englewood Cliffs, NJ.
- Chakrabarti and A Mishra, February2001 "QoS Issues in Ad Hoc WirelessNetworks", IEEE Communications Magazine, Vol. 39, No. 2.
- S. -L. Wu, C. -Y. Lin, Y. -C. Tseng, J. -P. Sheu, 2000"A new multichannel MAC protocol with on-demand channel assignment for multi-hop mobile ad hoc networks", in: Proceedings of the International Symposium on Parallel Architectures, Algorithms and Networks, pp. 232–237.
- Ajay Chandra V. Gummala and John O. Limb, 2000 "Wireless Medium Access control protocol" IEEECommunications Surveys.
- G. Andersson, November 1995, "Performance of spread-spectrum radio techniques in an interference-limited hf environment," in Proc. IEEE MILCOM, vol. 1, pp. 347–351.
- John G. Proakis and Masoud Salehi, 1994 "Communications Systems Engineering" Prentice Hall, Inc. Englewood Cliffs, New Jersey.
- Principles of Communications, 4th Edition, Ziemer Tranter (ISBN 0-471-12496-6)
- Communication Systems, 3rd Edition, Simon Haykin.
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