Title :
A Linear Approximation of GMSK Modulation for GSM/EDGE Mobile Communications
Author :
Liu, Shugang ; Liu, Hongli
Author_Institution :
Coll. of Electr. & Inf. Eng., Hunan Univ., Changsha
Abstract :
Gaussian minimum shift keying (GMSK) modulation is one of the key technologies at the standard of GSM/EDGE mobile communications. The traditional algorithms are difficult to implement in VLSI design because of their complexity. This paper presents a new full digital scheme of linear approximation based on the partial response signaling and inter-symbol interference(ISI) properties. The theory for the full digital scheme is analyzed. And the modulator is realized on FPGA by using look-up table and sliding window technologies. The simulation results show that the new algorithm fully meet the performances of GSM/EDGE mobile communications. Furthermore, the digital scheme is suitable for large-scale integrated circuit design.
Keywords :
VLSI; cellular radio; field programmable gate arrays; frequency shift keying; intersymbol interference; mobile communication; table lookup; FPGA; GMSK modulation; GSM/EDGE mobile communications; Gaussian minimum shift keying modulation; VLSI design; inter-symbol interference; large-scale integrated circuit design; linear approximation; look-up table; sliding window; Algorithm design and analysis; Communication standards; Field programmable gate arrays; GSM; Interference; Linear approximation; Mobile communication; Partial response signaling; Table lookup; Very large scale integration;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.388
