Title :
Frequency-domain equalization for continuous phase modulation
Author :
Tan, Jun ; Stüber, Gordon L.
Author_Institution :
Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
Single-carrier frequency-domain equalization (SC-FDE) is proposed for continuous phase modulation (CPM). Two different discrete representations of the CPM signal are obtained. One is an orthogonal representation obtained from the Gram-Schmidt orthonormalization procedure, and the other is obtained from Laurent´s decomposition for binary CPM. The methodology for maintaining phase continuity with a cyclic guard interval is presented. Various optimal and suboptimal reduced-complexity approaches are suggested for SC-FDE of CPM signals. General full- and partial-response CPM waveforms, and specific examples of minimum-shift keying (MSK) and Gaussian MSK (GMSK) with BT=0.3 are investigated. Simulation results show that SC-FDE for CPM is an effective approach for CPM on channels having long impulse responses.
Keywords :
continuous phase modulation; equalisers; frequency-domain analysis; minimum shift keying; wireless channels; Gaussian minimum-shift keying; Gram-Schmidt orthonormalization procedure; Laurent decomposition; channel impulse response; continuous phase modulation; cyclic guard interval; discrete representation; orthogonal representation; single-carrier frequency-domain equalization; Collaboration; Continuous phase modulation; Delay estimation; Frequency domain analysis; GSM; Intersymbol interference; Maximum likelihood estimation; OFDM modulation; Phase modulation; Wireless communication; Continuous phase modulation (CPM); equalization; frequency-domain equalization (FDE);
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2005.853901
