Development of device-to-device communication in LTE-Advanced system

Yang, Miyoung; Jung, Kwang-Ryul; Lim, Soon-Yong; Shin, Jaewook

doi:10.1109/icce.2014.6776080

Cited by 5 publications

(3 citation statements)

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“…We reuse the existing cell reference signal (CRS) for measuring the received signal strength of eNB. To support proximity measurement of D2D UEs we choose to reuse the sounding reference symbols (SRS) in the LTE system as described in [5]. Proximity measurement (PM) means that nearby UEs that wish to communicate over direct link measure the degree of proximity of the peer UEs, to estimate the received timing, and to estimate the path loss between the UEs.…”

Section: Design Of D2d Measurementmentioning

confidence: 99%

“…However, none of these mode selection studies cover issues about how to perform measurement over D2D links and criteria for measurement reporting. In [5] we have proposed development architecture of an enhanced long-term evolution advanced (LTE-A) system incorporating the D2D communication and showed the viability of D2D technology. In this paper we discuss the measurement issues required for D2D mode selection in more detail.…”

Section: Introductionmentioning

confidence: 99%

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Mode Switching for Device-to-Device Communication in LTE-A Network

Bae

Shin

Song

2014

Proceedings of the 12th International Conference on Advances in Mobile Computing and Multimedia

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Device-to-device (D2D) communication enables nearby user equipments (UEs) to communicate directly without passing it through a base station (BS). When UE wish to communicate over direct link it is required to know the channel condition of its D2D link and its cellular link to select a link providing the best quality of service, so-called mode selection. UEs participating D2D communication need to conduct measurement over its UE-UE link and its eNB-UE link as well, and BS makes decision on mode switching based on the measurement report of UE. In this paper, we study the measurement procedures and reporting algorithms required for D2D communication. Frequent measurement report can cause the ping-pong mode switching whereas infrequent measurement report results in the delay of mode switching, thereby, leading to losing opportunity to offload traffic from the network. Wasteful frequent ping-pong mode switching is observed in some cases. We show that our proposal prevents frequent ping-pong mode switching without significant degradation in offloading performance achievable from D2D communication.

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Section: Design Of D2d Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mode Switching for Device-to-Device Communication in LTE-A Network

Bae

Shin

Song

2014

Proceedings of the 12th International Conference on Advances in Mobile Computing and Multimedia

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“…The probability that UE is in a CONNECTED state is (1-p I ). From [15], the formula to calculate p I is given by…”

Section: Signaling Loadmentioning

confidence: 99%

A D2D communication architecture under full control using SDN

2016

KSII TIIS

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Device-to-device (D2D) communication is a potential solution to the incessant increase in data traffic on cellular networks. The greatest problem is how to control the interference between D2D users and cellular mobile users, and between D2D users themselves. This paper proposes a solution for this issue by putting the full control privilege in cellular network using the software-defined networking (SDN) concept. A software virtual switch called Open vSwitch and several components are integrated into mobile devices for data forwarding and radio resource mapping, whereas the control functions are executed in the cellular network via a SDN controller. This allows the network to assign radio resources for D2D communication directly, thus reducing interference. This solution also brings out many benefits, including resource efficiency, energy saving, topology flexibility, etc. The advantages and disadvantages of this architecture are analyzed by both a mathematical method and a simple implementation. The result shows that implementation of this solution in the next generation of cellular networks is feasible.

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