1. A spectrally efficient transmission scheme for signals with large bandwidth
- Author
-
Rui Dinis and Paulo Silva
- Subjects
Signal processing ,Networking and broadcasting ,Computing and processing (Hardware/ software) ,Iterative method ,Computer science ,Communication ,020208 electrical & electronic engineering ,Bandwidth (signal processing) ,Equalization (audio) ,Radio receiver ,020206 networking & telecommunications ,Transportation ,02 engineering and technology ,Spectral efficiency ,Transmission bandwidth ,Interference (wave propagation) ,law.invention ,Signal processing and analysis ,law ,0202 electrical engineering, electronic engineering, information engineering ,Electronic engineering ,Symbol rate ,Communication channel - Abstract
In this paper we consider single-carrier with frequency-domain equalization (SC-FDE) schemes where the transmission bandwidth is above the symbol rate. To allow high spectral efficiencies, several channels share the same bandwidth. Since the co-channel interference (CCI) levels can be very high, we propose iterative FDE receivers where we jointly detect all users sharing the same channel. Our performance results show that we can have excellent performances, even with several users sharing the same channel. In fact, we can have the maximum theoretical spectral efficiency even with signals that have bandwidth substantially above the symbol rate.
- Published
- 2012