Open Access Open Access  Restricted Access Subscription or Fee Access

Coded Cooperative Scheme Based Punctured Convolutional Coding

H. Vasani Ekta, Manisha Upadhyay

Abstract


Recently, cooperative communication has been proposed to provide diversity, thereby improving the performance of wireless networks. Cooperative communication takes advantage of broadcast nature of wireless channel to form virtual MIMO system, and thereby provides diversity and fights against fading. The performance of cooperative system is further enhanced by associating it with convolution coding. Coded cooperation is a mechanism where cooperation is combined with and operates through channel coding. In this paper, first we have shown that cooperative system is better than non-cooperative. Then, we have compared the performance of amplify-and-forward (AF) and Decode-and-forward (DF) scheme. Thereafter, we considered coded cooperation scheme and shown that compared to amplify-and-forward (AF) and Decode-and-forward (DF), the coded cooperative scheme outperforms in terms of better BER performance. Further, we have design and simulated coded cooperative scheme with punctured convolutional coding and have investigate the system performance of punctured convolutional codes, with cooperative transmission schemes. Here as compared to Non-cooperative communication, AF gives us the gain of approximately 4 dB, coded cooperation gives the gain of 3 dB as compared to AF. Finally the AF with Punctured convolutional coding is compared with uncoded AF and AF with convolutional coding and the simulated results shows that it outperforms the other two and gives gain of almost 3 dB.

Keywords


Cooperative Diversity, Coded Cooperative Scheme, Punctured Convolutional Coding.

Full Text:

PDF

References


A. Sendonaris, E. Erkip and B.Aazhang, “User cooperation diversity-Part I: System description, IEEE Trans. Commun., vol. 51, no. 11, pp. 1927-1938, Nov 2003.

E. C. van der Meulen “Three terminals communication channels,” Adv.Appl. Prob,vol. 3, pp. 120154, 1971.

A. E. G. T Cover,, “Capacity theorems for the relay channel, IEEE Trans. Inf. Theory, vol. IT-25, no. 5, pp. 572584, Sep 1979.

J. N. Laneman, D. N. C. Tse, and G. W. Wornell, “Cooperative diversity in wireless networks: efficient protocols and outage behavior,” IEEE Trans. Inf. Theory,vol. 50, no. 12, pp. 30623080, Dec 2004.

A. Sendonaris, E. Erkip, and B. Aazhang, “User cooperation diversity- Part II: Implementation aspects and performance analysis,” IEEE Trans. Commun., vol. 51, no. 11, pp. 19391948, Nov 2003.

J. N. Laneman, G. W. Wornell, and D. N. C. Tse, “An Efficient Protocol for Realizing Cooperative Diversity in Wireless Networks,” Proc. IEEE ISIT, Washington, DC, June 2001, p. 294.

A. stefanov and E. Erkip, “Cooperative coding for wireless networks,” IEEE Trans. Commun., vol. 52, no. 9, sept. 2004.

M. Janani, A. Hedayat, T.E. Hunter and A. Nosratinia, “Coded Cooperation in wireless communication: space-time transmission and iterative decoding” IEEE Trans. Signal Processing, vol. 52, no. 2, pp 362–371, Feb. 2004.

Cao and B. Vojcic, “Cooperative coding using serial concatenated convolutional codes,” in Proc. of Wireless Commun. and Networking Conf., New Orleans, LA, Mar. 2005, pp. 1001–1006.

T. E. Hunter and A. Nosratinia, “Cooperative diversity through coding,” in Proc. IEEE International Symposium on Information Theory (ISIT), Laussane, Switzerland, July 2002, p. 220.

T. E. Hunter and A. Nosratinia, “Diversity through Coded Cooperation,” IEEE Trans. Wireless Commun., 2004.

J. Hagenauer, “Rate-compatible punctured convolutional codes (RCPC codes) and their applications,” IEEE Trans. Commun., vol. 36, pp. 3889-400, Apr.1988

J. N. Laneman and G. W. Wornell, “Distributed Space- Time-Coded Protocols for Exploiting Cooperative Diversity In Wireless Networks,” IEEE Trans. Info. Theory, vol. 49, no. 10, Oct. 2003, pp. 2415–25.

Stefanov and E. Erkip, “On the Performance Analysis of Cooperative Space-Time Systems,” Proc. IEEE WCNC, March 2003, pp. 729–34.

E. Malkamaki and H. Leib, “Coded diversity on block-fading channels," IEEE Transactions on Information Theory, vol. 45, no. 2, pp. 771-781, March 1999.

“Evaluating the performance of convolutional codes over block fading channels," IEEE Transactions on Information Theory, vol. 45, no. 5, pp. 1643-1646, July 1999.

T. S. Rappaport, Wireless Communications: Principles and Practice. Upper Saddle River, NJ: Prentice-Hall, 1996.

J G Proakis, “Digital Communication 4ed,” MH 2001.


Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.