Signal Processing for 5G: Algorithms and Implementations

Chapter 5Bandwidth-compressed Multicarrier Communication: SEFDM

Izzat Darwazeh, Tongyang Xu and Ryan C Grammenos

1. 5.1 Introduction
2. 5.2 SEFDM Fundamentals
   1. 5.2.1 The Principle of SEFDM
   2. 5.2.2 Generation of SEFDM Signals
   3. 5.2.3 Detection of SEFDM Signals
3. 5.3 Block-SEFDM
   1. 5.3.1 Principle of Block-SEFDM
   2. 5.3.2 Two-stage Signal Detection
4. 5.4 Turbo-SEFDM
   1. 5.4.1 Principle of Turbo-SEFDM
   2. 5.4.2 Soft Detection
5. 5.5 Practical Considerations and Experimental Demonstration
   1. 5.5.1 Channel Estimation
   2. 5.5.2 Experimental Demonstration
6. 5.6 Summary
7. References

5.1 Introduction

The physical layers of many of today's communication systems utilize multicarrier transmission techniques, as these offer good spectrum utilization in frequency-selective and multipath channels. The most prominent of the multicarrier systems is orthogonal frequency division multiplexing (OFDM), in which the information signal is carried on parallel orthogonal carriers (termed subcarriers) with frequency separation equal to the symbol rate. OFDM has its origins in the Kineplex system, originally proposed for computer communications in late 1950s [1]. The modern variant of OFDM first appeared in the 1966 and was implemented using digital techniques in 1971 [2, 3]. OFDM is currently the system of choice for many wired and wireless transmission systems [4], currently most notably as the downlink transmission system for the 4G cellular system, long-term evolution (LTE) [5]. In the quest to save spectrum, a new non-orthogonal multicarrier ...