GENERATION OF MPSK SIGNAL USING LOGIC CIRCUITS
Main Article Content
Abstract
The traditional technique of generating MPSK signals is basically to use IQ modulator that involves analog processing like multiplication and addition where inaccuracies may exist and would lead to imbalance problems that affects the output modulated signal and hence the overall performance of the system. In this paper, a simple method is presented for generating the MPSK using logic circuits that basically generated M-carrier signals each carrier of different equally spaced phase shift. Then these carriers are time multiplexed, according to the data symbols, into the output modulated signal.
Article Details
Section
How to Cite
References
- Kyongkuk Cho, Jaeyoon Lee, Dongweon Yoon, Sang Kyu Park, and Sanggoo Kim “The Effect of I/Q Imbalances in OFDM Systems with MPSK Modulation over AWGN Channel,”, The 11th IEEE International Conference on
Communications Systems (ICCS) 2008
- Seungkeun Park and Sung Ho Cho “SEP Performance of Coherent MPSK Over Fading Channels in the Presence of Phase/Quadrature Error and I-Q Gain Mismatch” IEEE Transactions On Communications, Vol. 53, No. 7, July 2005.
- Andreas Schuchert and Ralph Hasholzner “A Novel IQ Imbalance Compensation Scheme For The Reception of OFDM Signals” IEEE Transactions on Consumer Electronics, Vol. 47, No. 3, AUGUST 2001.
- Elias Nemer and Ahmed Said “An Iterative Feedback Algorithm for Correcting the I/Q Imbalance in DVB-S Receivers”. ACTA Press Proceedings on Communications Systems and Networks 2004, Spain.
- Chia-Horng Liu “On the Study of End-to-End IQ Imbalance Problem in OFDM Systems” IEEE 68th Vehicular Technology Conference, 2008, Canada.
- S. Mutha, P. Roblin, D. Chaillot, Xi Yang, Jiwoo Kim, J. Strahler, R. Rojas, J. Volakis, “Technique for Joint Balancing of IQ Modulator-Demodulator Chains in Wireless Transmitters” IEEE MTT-S International Microwave Symposium Digest, 2009. Boston, MA, pp 221 – 224.
- Jack Smith, Modern Communication Circuits, McGraw-Hill Series in Electrical Engineering, 1986.
- Andrei Grebennikov and Nathan O. Sokal Switchmode RF Power Amplifiers, Elsevier Communications Engineering Series, 2007.
- G. Privitera and Francesco Pessolano “Analysis of High-Speed Logic Families” Power and Timing Modeling, Optimization and Simulation, Proceedings of 13th InternationalWorkshop, PATMOS 2003, Italy.