Optimization for time-division Relaying against blank subframe ratio and transmission power

Uezono, Masaki; Nakazawa, Shozo; Matsuoka, Satoshi; Otsuka, Hiroyuki

doi:10.1109/icufn.2015.7182549

Cited by 1 publication

(1 citation statement)

References 4 publications

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“…Figure 5(a) shows that when the eNB transmits data to the RN in the downlink, the RN cannot simultaneously relay the data to the UE. Specifically, the RN transmits only to the control channel without data, which is called as an almost blank subframe (ABS) [11], [29]. However, in this paper, we discuss inband relaying with simultaneous transmission and reception to further increase the frequency utilization efficiency.…”

Section: Simultaneous Transmission and Reception On The Same Carrier Frequencymentioning

confidence: 99%

Performance Analysis of Fiber-Optic Relaying with Simultaneous Transmission and Reception on the Same Carrier Frequency

Utatsu

Otsuka

2019

IEICE Trans. Commun.

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Denser infrastructures can reduce terminal-to-infrastructure distance and thus improve the link budget in mobile communication systems. One such infrastructure, relaying can reduce the distance between the donor evolved node B (eNB) and user equipment (UE). However, conventional relaying suffers from geographical constraints, i.e., installation site, and difficulty in simultaneous transmission and reception on the same carrier frequency. Therefore, we propose a new type of fiber-optic relaying in which the antenna facing the eNB is geographically separated from the antenna facing the UE, and the two antennas are connected by an optical fiber. This structure aims to extend coverage to heavily shadowed areas. Our primary objective is to establish a design method for the proposed fiber-optic relaying in the presence of self-interference, which is the interference between the backhaul and access links, when the backhaul and access links simultaneously operate on the same carrier frequency. In this paper, we present the performance of the fiber-optic relaying in the presence of intra-and inter-cell interferences as well as self-interference. The theoretical desired-to-undesired-signal ratio for both uplink and downlink is investigated as parameters of the optical fiber length. We demonstrate the possibility of fiber-optic relaying with simultaneous transmission and reception on the same carrier frequency for the backhaul and access links. We validate the design method for the proposed fiber-optic relay system using these results.

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Section: Simultaneous Transmission and Reception On The Same Carrier Frequencymentioning

confidence: 99%

Performance Analysis of Fiber-Optic Relaying with Simultaneous Transmission and Reception on the Same Carrier Frequency

Utatsu

Otsuka

2019

IEICE Trans. Commun.

Self Cite

View full text Add to dashboard Cite

show abstract

Optimization for time-division Relaying against blank subframe ratio and transmission power

Cited by 1 publication

References 4 publications

Performance Analysis of Fiber-Optic Relaying with Simultaneous Transmission and Reception on the Same Carrier Frequency

Performance Analysis of Fiber-Optic Relaying with Simultaneous Transmission and Reception on the Same Carrier Frequency

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