TMS320C6701을 이용한 OFDM Tranceiver 구현

소개글

TMS320C6701을 이용한 OFDM Tranceiver 구현에 대한 보고서 자료입니다.

목차

1. 서론
2. OFDM 시스템
- OFDM 전송 방식의 개요
- OFDM 원리
- OFDM의 특징
3. IEEE802.11a Wireless LAN의 모뎀 설계
- 주요 파라미터
- 송신단
- 수신단
. TMS320C6701 DSP Processor
5. 모의실험
6. 시스템 구성 및 구현 결과
7. 결론

본문내용

5-14 May 1990.
[4] IEEE Std 802.11a, "Wireless LAN Medium Access Control(MAC) and Physical Layer(PHY) Specifications: High-Speed Physical Layer in the 5 GHz Band,"
1999.
[5] Meng-Han Hsieh and Cho-Ho Wei, "A Low-Complexity Frame Synchronization and Frequency Offset Compensation Scheme for OFDM Systems over Fading Channels," in IEEE Transactions on Vehicular Technology, Vol. 48, No. 5, September 1999.
[6] J-J. van de Beek, M. Sandell, P.O. Borjesson, "ML Estimation of Time and Frequency Offset in OFDM systems," IEEE Transaction on Signal Processing, Vol. 45, No. 7, July 1997
[7] T. M. Schmidl, D. C. Cox, "Low-Overhead, Low-Complexity [Burst] Synchronization for OFDM," IEEE International Conference on Commun., Vol. 3., 1996, pp 1301-1306
[8] R. Steele, Mobile Radio Communications, New York : Wiley, 1974.
[9] Y. Li, L. J. Cimini, Jr., and N. R. Sollenberfer, "Robust channel estimation for OFDM systems with rapid dispersive fading channels", IEEE Trans. on Commun., vol. 46, no. 7, pp.902-915, July 1998.
[10] ETSI BRAN WG3 PHY Subgroup, "Criteria for Comparison," ETSI EP BRAN#9 Sophia Antipolis, July 1998.
[11] Texas Instruments, TMS320C6000 Peripherals, 1999.
[12] Texas Instruments, TMS320C6000 Optimizing Compiler, 2000.
[13] Texas Instruments, TMS320C6000 Programmer's Guide, 2000.
[14] Texas Instruments, TMS320C6000 Code Composer Studio, 2000.
[15] Texas Instruments, TMS320C6000 User's Manual, 1999.
ABSTRACT
Implementation of OFDM Tranceiver
using TMS320C6701
The orthogonal frequency division multiplexing(OFDM) has an advantage that is robust against frequency selsective fading caused by high data rate over the multipath fading channel in wireless communication systems. Therefore, the most suitable modulation choice seems to be OFDM for achieving high data rate.
Necessary of flexible wireless system is caused by the various communication standard and it follows that the research regarding Software Radio is started. The software system is more flexible than hardware system generally. So if it reduces the portion of hardware system and increases software, it is possible to implement of the more flexible system. In order to develop that system, the software which controls the digital hardware must be supported to decide the operation and performance of whole system. It is using DSP device based on Software Radio concept for the development of mobile communication system. Because DSP device has the reconfigurable, programmable and flexible features.
The purpose of this study is the implementation of IEEE802.11a wireless LAN Tranceiver system using DSP technologies. I first made the simulation model of IEEE802.11a wireless LAN system. Then, I analyzed the performance of the wireless LAN system through computer simulation. Next, I organized IEEE802.11a wireless LAN test bed to demonstrate the performance of the system. It follows that we see the performance difference of between simulation result and actual result obtained through TMS320C6701 board.

키워드

OFDM,   TMS320C6701,   Tranceiver,   DSP