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The Demodulation for Bipolar Delta Driven GMSK
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 Title & Authors
The Demodulation for Bipolar Delta Driven GMSK
Bang, Seung-Cheol;
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The delta driven GMSK is a modulation scheme to generate the gaussian pulse by the bipolar delta signal and to modulate the phase function with the differential gaussian pulse between and . The demodulation of delta driven GMSK differs from conventional GMSK schemes. This paper proposed a demodulation with the differential phase detector at the end of each bit interval. A designed detector then finds the one of the possible region by hard decision, in which the phase difference lies. Finally the binary data can be recovered by state transition process. Through the BER simulation for AWGN channel, it was found that the proposed demodulation effected by the run length of binary data. The simulated BER degradation of about 2[dB] was analyzed, as compared to the theoretical coherent demodulation with =0.3.
GMSK;Delta GMSK;Phase Demodulation;BER;GLPF;
 Cited by
T. Turletti, "GMSK in a nutshell," Telemedia Networks and Systems Group LCS, MIT-TR, Apr. 1996.

P. K. Govindaiah, "Design and development of gaussian minimum shifting keying(GMSK) demodulator for satellite communication," Bonfring Int. J. Research Commun. Eng., vol. 2, no. 2, pp. 6-11, June 2012. crossref(new window)

J. Gal, A. Campeanu, and I. Nafornita, "Noncoherent demodulation of continuous phase modulated signals using Kalman filtering," in Proc. 12th. Int. Conf. Optimization Elect. Electron. Equipment (OPTIM), pp. 724-727, Brasov, Romania, May 2010.

A. Mahdavi, D. Gordon, and N. Riley, "Differential GMSK receivers with phase control for narrowband radio communication," Radio Eng., vol. 7, no. 4, pp. 18-23, Dec. 1998.

C. Min, L. Xin, and L. Ji-ping, "Joint iterative noncoherent demodulation and MAP decoding algorithm for GMSK signal based on SCCC structure," in Proc. 12th. IEEE Int. Conf. Commun. Tech. (ICCT), pp. 917-920, Nanjing, China, Nov. 2010.

H. Mathis, "Differential detection of GMSK signals with low BtT using the SOVA," IEEE Trans. Commun., vol. 46, no. 4, pp. 428-430, Apr. 1998. crossref(new window)

S. C. Bang and W. S. Lee, "The GMSK modulation for bipolar delta signal," J. KICS, vol. 38B, no. 7, pp. 581-588, July 2013. crossref(new window)

L. Hars, "Formulae and algorithms for the GMSK modulation," in Proc. DSP World Workshop, pp. 221-238, Toronto, Canada, Sep. 1998.

I. Korn, "GMSK with limiter discriminator detection in satellite mobile channel," IEEE Trans. Commun., vol. 39, no. 1, pp. 94-101, Jan. 1991. crossref(new window)

R. I. Seshadri, D. Lao, C. Kwan, and J. P. Fonseka, "Bandwidth constrained low complexity noncoherent CPM with ML soft-decision differential phase detection," in Proc. IEEE Military Commun. Conf. (MILCOM 2005), vol. 1, pp. 7-12, Altantic City, U.S.A., Oct. 2005.

MX-COM Inc., MSK and its Application to Wireless Data Transmission(1997), Retrieved Aug., 14, 2013, from

D. Devi, "BER performance of GMSK using MATLAB," Int. J. Advanced Res. Comput. Eng. Tech., vol. 2, no. 4, pp. 1389-1392, Apr. 2013.

M. Rai and A. Nigam, "Analysis of performance improvement using GMSK modulation technique in wireless DS-CDMA communication systems," Int. J. Eng. Sci. Tech., vol. 4, no. 5, pp. 1871-1875, May 2012.

L. Ma and D. Asano, "Performance of GMSK and Reed-Solomon code combinations," IEICE Trans. Fundam. Electron., Commun., Comput. Sci., vol. E88-A, no. 10, pp. 2863-2868, Oct. 2005. crossref(new window)

P. A. Laurent, "Exact and approximate construction of digital phase modulations by superposition of amplitude modulated pulses." IEEE Trans. Commun., vol. 34, no. 2, pp. 150-160, Feb. 1986. crossref(new window)