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An Architecture for High Data Rate Very Low Frequency Communication
2013
Defence Science Journal
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A detailed comparison of the two types can be found in the literature 27 . ...
Algorithm for Offset Modulation and MSK-Type Signals, IEEE Trans. Vehicular Technol., 1992, 41(4), 401-06. Laurent, P.A. ...
for high-resolution imaging sonars that simulates acoustic images of 3-D scenarios, MSK and GMSK modem design for VLF communication, Compact multiplexed multichannel SONAR system with proven superior performance ...
doi:10.14429/dsj.63.3760
fatcat:crhn3vuyp5fqdkewy2gbfbdjrm
DSP-based digital FM demodulation for GMSK signals
1996
Sadhana (Bangalore)
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Demodulation of Gaussian Minimum Shift Keying (GMSK) using a limiter-discriminator is a low complexity alternative to coherent demodulation. ...
This technique couples very nicely with a new maximum likelihood sequence estimator for the data that uses a whitening filter followed by a Viterbi decoder. ...
For example, the optimum sampling instants for a GMSK signal with BT -----0.5 are shown by cross-marks in figure 2. ...
doi:10.1007/bf02781791
fatcat:rlindwesprf5bkor26uu4tn6k4
Performance Realization of CORDIC based GMSK System with FPGA Prototyping
2020
International Journal of Advanced Computer Science and Applications
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TheCORDIC algorithms play a crucial role in GMSK systems for IQ generation and improve the system performance on a single chip. ...
These results show that the optimized CORDIC based GMSK system is a better option than the pipelined CORDIC based GMSK systems for real-time scenarios. ...
The MSK provides the constant envelope signals for power amplification which reduces the problems caused by non-linear distortion, and MSK encodes each bit is like a half sinusoidal. ...
doi:10.14569/ijacsa.2020.0110172
fatcat:xl3q2jq7bfbedek4e6gwogi4ia
A comparative study of narrowband microcellular speech transmission schemes
1994
IEEE Transactions on Vehicular Technology
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It becomes apparent that the selection of the type of modem and the number of its levels, the choice of speech codec to be used, and whether to deploy a channel codec, depends on the channel signal-to-noise ...
Experiments are conducted on a number of mobile radio systems that are suitable for operation in nondispersive microcellular networks. ...
The Viterbi detector with both GMSK schemes (BT = 0.5 and BT = 0.3) yielded very similar performances for transmissions over both types of channels. ...
doi:10.1109/25.330154
fatcat:e2l4t65sgrbb5cnodzffecrgwi
Performance Analysis and Monitoring of Various Advanced Digital Modulation and Multiplexing Techniques of F.O.C Within and Beyond 400 Gb/S
2014
International Journal of Computer Networks & Communications
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This paper reviews a tabular comparative analysis with 3D graphical representation for different optical digital modulation formats and multiplexing techniques within and beyond 400 Gb/s. ...
To achieve better calculative performance in optical fiber communication and for simplicity of implementation different digital modulation, detection and multiplexing techniques are used. ...
The transmitters for optical MSK based on two MZM similar to the transmitter for DQPSK. ...
doi:10.5121/ijcnc.2014.6213
fatcat:rwjre5ebxzcl3ipkkusg62nrxa
Protograph-based LDPC convolutional codes for Continuous phase modulation
2015
2015 IEEE International Conference on Communications (ICC)
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The spatial coupling is an efficient technique that improves the threshold of Low Density Parity Check (LDPC) codes. ...
We show that coupling protographs optimized for CPM improves their performance and helps designing very good 'small' protographs. ...
For GMSK, the modulation choosed for GSM system, h = 1/2, L cpm = 3, M = 2, BT = 0.3, and the pulse response is a Gaussian. Let U i = (α i + (M − 1))/2 ∈ {0, 1, ..., M − 1}. ...
doi:10.1109/icc.2015.7249024
dblp:conf/icc/BenaddiPBGL15
fatcat:6ia3qpjhebdsdneowpu7xef43y
Wireless data communications
1994
Proceedings of the IEEE
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The system-level issues are somewhat different for these two categories of services, and this has led to different technology choices in the two domains, which we discuss in the paper. ...
On one hand, there are requirements for relatively low-speed data services supporting mobile users over wide geographical areas, as provided by mobile data networks. ...
However, because of its close relationship to ordinary MSK, best performance is obtained by demodulating the received GMSK signal with a two-branch coherent demodulator very much the same as used with ...
doi:10.1109/5.317085
fatcat:2c3x5sfaircr3iz552mdtl7fbu
Differentially detected MSK and GMSK modulation schemes in CCI channels for mobile cellular telecommunication systems
1992
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The thesis looks into two popular members — Minimum Shift Keying (MSK) and Gaussian Minimum Shift Keying (GMSK). ...
For CCI, a general model is considered, which additively perturbs the transmitted signals and consists of an arbitrary number of statistically independent interferers that also employ MSK signals. ...
Bouras for his help in my initial software stage, and to V. Wong and R. Cam for their useful discussions and suggestions on the thesis. ...
doi:10.14288/1.0064913
fatcat:rg7xheuhzvaixijqzg45vtwskm
TDMA digital mobile radio transmission system
2023
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OMSK modulation with BT= 0.3 was used and the data rate was 500 kb/s. ...
The field experiments were conducted in a typical urban area with a maximum 1 km separation between the transmitter and the receiver. ...
Therefore a worst case• +signal waveform can be selected, and Figure3.15 shows the quadrature baseband waveforms for GMSK modulation with BT = 0.3. ...
doi:10.17638/03176343
fatcat:3oukugd4sbb6zb57atunp6yy3i
Energy Efficiency and Reliability in Wireless Biomedical Implant Systems
2011
IEEE Transactions on Information Technology in Biomedicine
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2011 pre-print arXiv:1101.0906v1 fatcat:m33zg7ijqnbddbidg3emlwf54y
In addition, the protocol allows a fast start-up time for the transceiver circuitry. ...
rateless code with the Frequency Shift Keying (FSK) modulation scheme to overcome the reliability and power cost concerns in tiny implantable sensors due to the considerable attenuation of propagated signals ...
ACKNOWLEDGMENT The authors would like to thank Ali Tawfiq (University of Toronto) for graciously editing this paper. ...
doi:10.1109/titb.2011.2105497
pmid:21233054
fatcat:l6q37ykhz5gdfj3qwne6hft62q
Simultaneous voice and in-band data
IEEE WESCANEX 95. Communications, Power, and Computing. Conference Proceedings
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Processing at the receiving end separates the voice and data signals and demodulates the data for use by a computer. ...
A portion of the speech spectrum is replaced with a medium speed digital data signal so that both speech and data signals are carried on a telephone channel to a remote receiver. ...
the spectrums of GMSK (BT=0.3), MSK (BT=oo), and the approximation to GMSK. ...
doi:10.1109/wescan.1995.493976
fatcat:nxf274mhmnhrnmoqzotz6ayc2m
SDR All-channels Receiver for FHSS Sensor Network
2018
2018 International Conference on Applied Electronics (AE)
unpublished
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Live tests on RTL-SDR showed that the receiver has parameters comparable to a commercial GFSK chip. ...
As a first step towards this goal, this paper describes design and basic testing of needed base station receiver. ...
For GMSK (GFSK and MSK together) with BT = 0.5 it would simplify to F bw = 1.5 Ts . ...
doi:10.23919/ae.2018.8501460
fatcat:336cwkgpung4bff2pjtbv6ttii
Detection of Fragmented Telegrams in Multi-User MIMO Channels
2024
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These detectors are derived for a general number of receive antennas and arbitrary pilot sequences. ...
Specifically for the multi-user (MU)-multiple-input multiple-output (MIMO) channel, which is accessed by multiple unsynchronized users, a robust detector is considered in more detail. ...
Impact of Gaussian Minimum Shift Keying The TS-UNB standard specifies two distinct modulation types, namely MSK and GMSK with the normalized bandwidth BT = 1.0. ...
doi:10.25593/open-fau-433
fatcat:c3vmajniivezrdogrvvzkjtemm
SPARSE GRAPH-BASED CODING SCHEMES FOR CONTINUOUS PHASE MODULATIONS Directeur(s) de Thèse : Rapporteurs : Membre(s) du jury
unpublished
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BT = 0.3
Figure 4 . 8 : 48 Comparison of the BER performance of the two receivers for uncoded GMSK with h = 1/3, L = 3 and BT = 0
Figure 4 . 9 : 49 Comparison of the EXIT chart curves of the Rimoldi's ...
The difference between the two curves is noticeable at low signal to noise ratios (SNR). ...
(B.3) gives: • From different observations, let us assume that the derivative of the EXIT transfer function of the detector T is defined at 1, i.e.: • In [RU08] , for small x, the Taylor expansion of ...
fatcat:i5nrf5k3kbe2joli3qbpikjjaa
Open Archive TOULOUSE Archive Ouverte (OATAO) Protograph-Based LDPC Convolutional Codes for Continuous Phase Modulation
2015
IEEE International Conference on Communications (ICC 2015)
unpublished
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(Abstract-The spatial coupling is an efficient technique that improves the threshold of Low Density Parity Check (LDPC) codes. ...
Inspired from convolutional codes and thanks to the inner structure of CPM, we also introduce a new termination without rate loss but that still exhibits a coupling gain and it thus has a very good threshold ...
For GMSK, the modulation choosed for GSM system, h = 1/2, L cpm = 3, M = 2, BT = 0.3, and the pulse response is a Gaussian. Let U i = (α i + (M − 1))/2 ∈ {0, 1, ..., M − 1}. ...
fatcat:fcxact34czbhzpqhvbi5lya5fm
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