Analysis of Uplink Power Control in Cellular Mobile Systems

Oruthota, Udesh; Tirkkonen, Olav; Dharmawansa, Prathapasinghe

doi:10.1109/vtcspring.2013.6691892

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…To decrease the intercell interference, 3GPP has recently approved the use of fractional power control (FPC) , which compensates for a fraction of the path loss. Closed‐form approximation for intercell interference in an FPC‐based cellular system can be found in . The advantages of using FPC are that it achieves an enhanced average achievable rate and reduces interference to the neighbouring cells .…”

Section: System Modelmentioning

confidence: 99%

Resource allocation and power control based on user grouping for underlay device‐to‐device communications in cellular networks

Dinh-Van

Shin

2015

Trans. Emerging Tel. Tech.

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Device‐to‐device (D2D) communications have emerged as a promising solution that can enable new wireless local services and can enhance the performance of wireless services in cellular networks. However, D2D links in a cellular network are difficult to establish because of mutual interference between cellular and D2D transmissions. Hence, it is of primary importance to devise a radio resource allocation scheme that can maximise the spectrum utilisation and at the same time minimise the impact of interference. In this article, we propose a novel resource allocation method for D2D communications underlaying cellular networks. The proposed method divides D2D pairs into several groups and allows spatially separated D2D users to belong to the same group so that they can exploit the same resource. An appropriate cellular device is selected to share its uplink resources with the D2D pairs in each group in such a way that an adequate signal‐to‐interference‐plus‐noise ratio for both cellular and D2D links can be guaranteed. We also propose a power control strategy for D2D links in order to maximise the number of D2D pairs that can be served. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: System Modelmentioning

confidence: 99%

Resource allocation and power control based on user grouping for underlay device‐to‐device communications in cellular networks

Dinh-Van

Shin

2015

Trans. Emerging Tel. Tech.

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“…Now, the angle θ becomes a uniformly distributed random variable over the range (0, 2π] and average interference can be directly obtained from [9] …”

Section: A Ue D2 On the Center Line Of The Sectormentioning

confidence: 99%

“…As an alternative to the basic idea of uplink power control, 3GPP has approved the use of Fractional Power Control (FPC) [7], [8] which compensates a fraction of the path-loss. Closed form approximation for the inter-cell interference in FPC based cellular system can be found in [9].…”

Section: Introductionmentioning

confidence: 99%

I/Q Interference in Device-to-Device Underlay Communication with Uplink Power Control

Oruthota

Tirkkonen

2015

2015 IEEE 81st Vehicular Technology Conference (VTC Spring)

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We consider cellular network assisted Device-to-Device (D2D) communication in an orthogonal resource sharing mode. An orthogonal Frequency Division Multiple Access (FDMA) or single-carrier FDMA system is considered, and fractional power control related to the received signal at the base station is used for both cellular and D2D transmissions. This guarantees that the interference from D2D to cellular transmissions is on tolerable level. With transceiver I/Q imbalance, there may be severe interference from cellular to D2D communication when these two happen on mirror frequency resources. This leads to an I/Q near-far effect. Signal-to-interference-plus-noise ratio statistics are investigated for D2D reception in the presence of I/Q imbalance. Closed form expressions for the average cellular interference are derived. The contribution of the I/Q imbalance is comparably high at cell edge, despite the fact that the absolute interference power decreases, when the D2D pair approaches cell edge. The I/Q near-far effect the orthogonal frequency resources given to D2D.Index Terms-Device-to-device communication, Fractional power control, I/Q imbalance.

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Relay Selection and Resource Allocation for D2D-Relaying under Uplink Cellular Power Control

Deng

Dowhuszko

Freij

et al. 2015

2015 IEEE Globecom Workshops (GC Wkshps)

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Analysis of Uplink Power Control in Cellular Mobile Systems

Cited by 3 publications

References 11 publications

Resource allocation and power control based on user grouping for underlay device‐to‐device communications in cellular networks

Resource allocation and power control based on user grouping for underlay device‐to‐device communications in cellular networks

I/Q Interference in Device-to-Device Underlay Communication with Uplink Power Control

Relay Selection and Resource Allocation for D2D-Relaying under Uplink Cellular Power Control

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