General Principles and Basic Algorithms for Full‐duplex Transmission

Kaiser, Thomas; Zarifeh, Nidal

doi:10.1002/9781119116493.ch16

Cited by 5 publications

(8 citation statements)

References 69 publications

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“…Self-interference cancellation techniques can be classified into passive SI suppression techniques, and active SI cancellation techniques [2].…”

Section: A Self-interference Cancellationmentioning

confidence: 99%

“…Passive SI suppression techniques are employed in the propagation domain, by setting up the transmit and receive antennas with an appropriate design, in order to suppress the SI signal power before it enters the receiver. The passive suppression is demonstrated in the FD mutual antenna transceiver architecture through the isolating RF circulator, where it achieves between (15-30 dB) of suppression [2]. Passive suppression in the separate antenna architecture can be achieved by implementing cross-polarization [3]- [7], directional isolation [4]- [6], antenna conditional placement [7]- [13], or absorptive/ reflective shielding [5], [9], [11].…”

Section: A Self-interference Cancellationmentioning

confidence: 99%

“…The main purpose of SI signal cancellation in propagation and analog domains is to prevent the saturation of the receiver's ADC. This is done by mitigating the SI signal before the low-noise amplifier (LNA) in the receiver's RF chain to reach the dynamic range of the ADC [2].…”

Section: System Model a Sic Requirementsmentioning

confidence: 99%

“…To be able to determine the requirements of SIC analytically, we must first understand the dependencies of the FD BS transceiver specifications and the attainable amount of SIC [2], which are shown in Fig. 3.…”

Section: System Model a Sic Requirementsmentioning

confidence: 99%

“…As long as the residual SI after the total SIC is higher than the receiver's noise floor, and correspondingly SSINR is lower than SNR R , the FD system performance will be degraded [2].…”

Section: System Model a Sic Requirementsmentioning

confidence: 99%

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Full-Duplex Femto Base-Station With Antenna Selection: Experimental Validation

et al. 2019

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Full-Duplex (FD) is an emerging technology that allows the communication device to use the same frequency to simultaneously transmit and receive. The cancellation of the high power Self-Interference (SI) is the main challenge in FD systems. Hybrid SI mitigation and cancellation schemes in propagation, analog, and digital domains, have to be used in order to mitigate the SI. Antenna selection (AS) can be employed to select the best antenna, or set of antennas, that guarantees jointly the maximization of the desired signal, and the minimization of SI. In this paper, we aim to experimentally enable FD transmission in an indoor femto base-station (BS) with antenna selection. Receive antenna selection is combined with cross-polarization and antennas conditional placement in order to achieve the required SI cancellation. Half-duplex (HD) Uplink (UL) user-equipments (UE) are used to measure the effect of downlink (DL) SI on the UL reception at the FD BS receiver. Different scenarios are experimented in the testbed such as, changing the number of antennas, the type of isolation (vertical/horizontal), and the type of antennas (Omnidirectional/directional). Three AS criteria are used, and the performance of the system is evaluated in terms of bit-error-rate, sum-rate, residual SI, and FD/HD sum-rate enhancement ratio. The measurement results show that the proposed hybrid solution is feasible to enable FD transmission in the considered scenario.

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“…Self-interference cancellation techniques can be classified into passive SI suppression techniques, and active SI cancellation techniques [2].…”

Section: A Self-interference Cancellationmentioning

confidence: 99%

Section: A Self-interference Cancellationmentioning

confidence: 99%

Section: System Model a Sic Requirementsmentioning

confidence: 99%

Section: System Model a Sic Requirementsmentioning

confidence: 99%

“…As long as the residual SI after the total SIC is higher than the receiver's noise floor, and correspondingly SSINR is lower than SNR R , the FD system performance will be degraded [2].…”

Section: System Model a Sic Requirementsmentioning

confidence: 99%

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