Efficiency and Dependability of Direct Mobile-to-Mobile Data Transfer for UMTS Downlink in Multi-Service Networks

Popova, Larissa; Herpel, Thomas; Koch, Wolfgang

doi:10.1109/wcnc.2007.611

Cited by 5 publications

(12 citation statements)

References 5 publications

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“…However, the total energy consumed in the network in order to distribute the x k parts allocated to MT k is given by (12) where the first term corresponds to the energy consumed by MT k on the LR, the second term corresponds to the energy consumed by MT k to transmit the data on the SR and the last term corresponds to the energy consumed by all other MTs to receive the data transmitted by MT k on the SR. The definition in (12) is used to prove the following theorem: Theorem 1.…”

Section: Energy Minimization With Unicastingmentioning

confidence: 99%

“…Cooperative wireless networks proved to have a lot of advantages in terms of increasing the network throughput [8][9][10][11][12][13], extending the network coverage [9,14], decreasing the end-user communication cost [15,16], decreasing the file download time [10][11][12] and decreasing energy consumption at MTs [17,18]. The integrated cellular and ad hoc relaying architecture integrates an ad hoc component into a cellular system by placing stationary special-purpose relay nodes to help improve network throughput [19,20].…”

Section: Introductionmentioning

confidence: 99%

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A utility minimization approach for energy‐aware cooperative content distribution with fairness constraints

Yaacoub

Al-Kanj

Dawy

et al. 2012

Trans. Emerging Tel. Tech.

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Cooperation between mobile terminals (MTs) with the objective of energy minimization is studied. The purpose is to distribute a content of common interest to collaborating MTs while ensuring a reduced energy consumption. To reach this goal, the content is sent to selected MTs on a long‐range link. Then, it is forwarded to other MTs on short‐range mobile‐to‐mobile links. The problem is formulated as an optimization problem, and the optimal solution is shown to consist of sending the content to a single MT on the long‐range link and of having that MT distribute it on the short‐range links. This leads to an unfair energy consumption for the selected MT. Thus, to ensure fairness in energy consumption, a low complexity utility minimization algorithm is proposed. Using the appropriate utilities, the algorithm can be used to implement the optimal greedy energy minimization solution or to ensure different degrees of fairness in energy consumption. Practical constraints concerning the centralised and distributed implementations of the proposed algorithm are also discussed. Simulation results show that significant energy savings can be achieved with the proposed approach compared with the non‐collaborative case. In addition, a tradeoff between fairness and energy savings is achieved depending on the utility selected. Copyright © 2012 John Wiley & Sons, Ltd.

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Section: Energy Minimization With Unicastingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A utility minimization approach for energy‐aware cooperative content distribution with fairness constraints

Yaacoub

Al-Kanj

Dawy

et al. 2012

Trans. Emerging Tel. Tech.

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“…-The NC-m2m (network coding -mobile-to-mobile) technique ameliorates the benefits of the replicate-and-forward m2m solutions proposed in [PHK07b,PHK07a], obviating the need for proper scheduling for non-real time file sharing applications. -The proposed NC technique requires only local neighborhood information to perform the cooperative data transfer and therefore avoids flooding the network with signalling information.…”

Section: Related Previous Workmentioning

confidence: 99%

Efficient Distribution of Large Files in UMTS Supported by Network Coded M2M Data Transfer with Multiple Generations

2010

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Abstract. This paper is a sequel of previous work, in which we have studied the traffic management problem in UMTS. The main objective was to improve the spectral efficiency of cellular networks by employing network coding supported direct mobile-to-mobile communication on usually underloaded uplink channels for the distribution of a delay insensitive popular content in multicast manner. Simulations demonstrate the noticeable performance enhancement in terms of file download times and at the same time a substantial reduction of the number of necessary transmissions in both uplink and downlink directions. However, popular content is often too large to be processed with a straightforward realization of network coding; combining the entire file to construct a single encoded block is impractical due to high encoding and decoding costs. To circumvent this problem, a novel concept is proposed in this paper. The scheme is based on processing popular content of virtually arbitrary size by embedding multiple generations into network coding.Key words: improvement in information distribution, direct mobile-tomobile communication, network coding, multiple generations. Related Previous WorkThe aim of the analysis performed in the previous paper [PSGK07] was to improve the interaction between cellular and peer-to-peer networks by generalizing the traditional scheduling paradigm. A network coding technique [ACLY00, FBW05] was embedded as a solution to the scheduling problem in the distributed dynamic environment of wireless large-scale networks. We have investigated the performance of the Universal Mobile Telecommunication System (UMTS) in terms of improvement in information distribution and dependability of information distribution among users by using direct mobile-to-mobile (m2m) data transmission mode. We have shown how, and in which terms network coding can thereby help. We have been especially interested in the distribution of the file download times for m2m users in different states of the download progress.

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“…In our basic m2m concept the data exchange policy was based on a local "most-utile packet" distribution scheme [13], [12]. For this, it was assumed that the users make a packet scheduling decision based on the local information about packets available in the neighborhood (info is periodically sent by m2m users in "Hello" packets).…”

Section: B Extended Network Coding Assisted M2m Model: Characteristimentioning

confidence: 99%

“…Only a pure m2m traffic scenario was considered in [13]. The algorithm was further extended to a more realistic scenario in [12], where a dynamic population of conventional UMTS speech users, operating on the same uplink frequency as the m2m users, has been considered. In both [13] and [12] an ideal packet scheduling was employed, assuming perfect knowledge of the current state of each file download performed in the neighborhood.…”

Section: Introduction and Motivation Of Researchmentioning

confidence: 99%

Network coding assisted mobile-to-mobile file transfer

Popova

Schmidt

Gerstacker

et al. 2007

2007 Australasian Telecommunication Networks and Applications Conference

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Abstract-This paper is a sequel of previous work, in which we have studied the problem of congestions on the typically overloaded downlink channels in UMTS (Universal Mobile Telecommunication System) networks. Our concept is based on the uplink/downlink traffic imbalance in 3G wireless networks and is realized by organizing seamless cooperation between peerto-peer and cellular networks using a unified radio interface for both systems. The primary goal is to improve the spectral efficiency of cellular networks by enabling direct mobile-tomobile (m2m) communication on temporarily unused uplink channels for the distribution of a large popular content in a non-real time multicast manner.The aim of this work is to further improve the interaction between cellular and peer-to-peer networks by generalizing the traditional scheduling paradigm. A network coding technique is embedded as a solution to the scheduling problem in the distributed dynamic environment of wireless large-scale networks. We investigate the performance of the system in terms of dependability of information distribution among m2m users.Simulations demonstrate the enhanced performance of the file distribution in terms of file download time. Furthermore, the obtained results highlight that network coding based m2m data transfer allows distribution of popular files to a large number of users while placing minimal bandwidth requirements on the central server.

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Efficiency and Dependability of Direct Mobile-to-Mobile Data Transfer for UMTS Downlink in Multi-Service Networks

Cited by 5 publications

References 5 publications

A utility minimization approach for energy‐aware cooperative content distribution with fairness constraints

A utility minimization approach for energy‐aware cooperative content distribution with fairness constraints

Efficient Distribution of Large Files in UMTS Supported by Network Coded M2M Data Transfer with Multiple Generations

Network coding assisted mobile-to-mobile file transfer

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