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The in-band full duplexing wireless exploiting self-interference cancellation techniques: algorithms, methods and emerging applications

The in-band full duplexing wireless exploiting self-interference cancellation techniques: algorithms, methods and emerging applications

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The most significant recent evolution in the wireless communication theory (WCT) is Full Duplexing of channel; that is, communicating a transmission simultaneously with reception. This has full impact on the communication system and the overall constituents of the WCT. This chapter aims at highlighting the developments in the in-band full duplexing (IBFD) access technique and its impact on the whole system linking the information source to termination channel. In this chapter, all techniques, algorithms and emerging applications are related to the reader to provide an updated starting point for the fresher and a comprehensive review of the current state of the art, for the experienced professional. The flow of the chapter started by relating the origins of the concept through to different evolved forms and finalizing with the emerging applications. The technique variants are presented in a categorized approach, providing the foundations of the concepts, how these progressed and how the older techniques have been incorporated into the newer context. The categorization was system based - that is relating the system block where the associated technique is exploited and network based, that is relating how these fit into different communication networks' topologies and applications. The categorization was well-related integrability and hybridization of the techniques, as well as presenting the reader with useful reviews and referencing to further readings. The impact of the IBFD is significant, and the pace of associated developments is extremely huge and fast; this art here presents a useful guide which is only relating the current state of art in the immediate temporal zone. IBFD field impacts every detail of the wireless communication system, so it is fair to anticipate the forthcoming decade to lay emphasis on the technique and its exploitations. Pertaining to the current temporal frame, this chapter covered mostly every foundation point in the concept.

Chapter Contents:

  • Abstract
  • Keywords
  • 3.1 Introduction
  • 3.2 The in-band full duplexing communications: the concept and the background
  • 3.2.1 The basic IBFD techniques
  • 3.2.2 Antenna cancellation techniques (ACT)
  • 3.2.2.1 Extension of the indigenous art mathematical model to (N) antenna elements [5]
  • 3.2.2.2 Grating nulls against pattern nulls
  • 3.2.2.3 Theoretical aspects: challenges and limitations
  • 3.2.2.4 Technical implementations: challenges and limitations
  • 3.2.3 Passive RF suppression techniques
  • 3.2.3.1 Directional and polarization isolation
  • 3.2.3.2 Adaptive isolation techniques
  • 3.2.3.3 Beamforming using time domain waveforms
  • 3.2.3.4 Balanced feed networks in RF isolation context
  • 3.2.4 Active RF cancellation techniques
  • 3.2.4.1 Echo image cancelling using baseband to RF up-conversion
  • 3.2.4.2 Feed-forward networks
  • 3.2.4.3 RF analogue canceller variables' computations
  • 3.2.4.4 Adaptive phase inversion cancellers
  • 3.2.5 Analogue cancellations
  • 3.2.6 Digital baseband cancellations
  • 3.2.6.1 Modelling the received digital signal in IBFD context
  • 3.2.6.2 Recent techniques relating digital self-signal (Echo) cancellations
  • 3.2.7 Hybrid combinations of techniques
  • 3.2.7.1 A platform for integration of IBFD techniques
  • 3.2.7.2 A review of recently proposed IBFD hybridized methods
  • 3.2.7.3 The nulling function [5,6]: a recursive seed to hybrid combinations
  • 3.3 The evolutionary impact of the IBFD techniques on WCT and associated developments
  • 3.3.1 The IBFD in the 5G networks
  • 3.3.1.1 IBFD in the network relaying techniques
  • 3.3.1.2 IBFD in the channel state information acquisition techniques
  • 3.3.1.3 IBFD in the backhauling techniques
  • 3.3.1.4 IBFD in cognitive networks
  • 3.3.1.5 IBFD and the energy harvesting techniques
  • 3.3.1.6 IBFD and the shaping of protocols
  • 3.3.1.7 IBFD and the cloud/fog network computing
  • 3.3.2 The potentials and deficiencies of the single antenna IBFD
  • 3.4 Conclusion
  • References

Inspec keywords: interference suppression; telecommunication network topology; radio networks

Other keywords: WCT; in-band full duplexing wireless communication system; termination channel; information source; self-interference cancellation techniques; system block; IBFD access technique; communication network topology

Subjects: Radio links and equipment; Communication network design, planning and routing; Electromagnetic compatibility and interference

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