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Spectrally-efficient FDMA-CPM systems

L. Bing ; Tor Aulin (Institutionen för data- och informationsteknik, Datorteknik (Chalmers)) ; B. Bai
2014 IEEE International Conference on Communications, ICC 2014 p. 5215-5220. (2014)
[Konferensbidrag, refereegranskat]

This paper concerns with the design of spectrally-efficient Frequency-Division-Multiple-Access (FDMA) multiuser systems based on Continuous-Phase-Modulation (CPM). A class of FDMA-CPM is proposed to accommodate multiple users in a subchannel and therefore admits significantly improved spectral-efficiency. Phase spacing is incorporated into the system to improve the Euclidean distance property, especially for FDMA-CPM systems with small frequency spacing. The impacts of the phase spacing and frequency spacing are then evaluated in terms of the distance property, which shows that the proposed FDMA-CPM systems have a comparable error performance to the single user systems. The proposed strategy is exemplified by systems having spectral-efficiency varying from 1.67 bits/s/Hz to 12 bits/s/Hz, which shows significantly improved spectral efficiency is obtained comparing with existing systems given the same signal to noise ratio.



Denna post skapades 2014-09-23.
CPL Pubid: 203174

 

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