Study of Modulation schemes with Memory, like MSK, GMSK etc.

1. How does the Gaussian filter bandwidth-time product (BT) in GMSK affect the system’s trade-off between spectral efficiency and inter-symbol interference (ISI)?
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2. In GMSK, how does the presence of memory due to Gaussian filtering affect maximum likelihood sequence estimation (MLSE)?
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3. Why is MSK considered a special case of continuous phase frequency shift keying (CPFSK)?
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4. In the context of GMSK, which factor most directly determines the extent of inter-symbol interference (ISI)?
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5. How does the minimum frequency spacing in MSK ensure orthogonality between symbols?
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6. Why is non-coherent detection more challenging in GMSK compared to MSK?
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7. How does continuous phase modulation in MSK help in reducing spectral side lobes?
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8. In terms of power spectral density (PSD), which statement best describes GMSK?
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9. What is the role of coherent demodulation in improving BER performance for GMSK signals?
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10. Why is GMSK preferred in GSM systems over QPSK or MSK?
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