Peer to peer mobile TV recovery system

Hummelbrunner, Patrik; Buchinger, Shelley; Robitza, Werner; Selig, David; Nezveda, Matej; Hlavacs, Helmut

doi:10.1145/1809777.1809830

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…In Reference , MDs are organized as an ad hoc network, and each MD encountering packet loss will query the lost packets from other MDs. Reference proposes a recovery mechanism based on a peer‐to‐peer basis connecting Mobile TV clients via Universal Mobile Telecommunications System to recover packets that have been lost during the Mobile TV DVB‐H transmission. Different from References , our work follows the DVB‐IPDC architecture to retransmit through an infrastructured network.…”

Section: Preliminariesmentioning

confidence: 99%

A request control scheme for data recovery in DVB‐IPDC systems with spatial and temporal packet loss

Yang¹,

Wang²,

Tseng³

et al. 2011

Wireless Communications

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Recently, digital video broadcasting‐handheld (DVB‐H) and IP datacast over DVB‐H (DVB‐IPDC) have been developed to support broadcasting services. DVB‐H is designed to support digital video broadcast for handheld devices, whereas DVB‐IPDC can integrate with an IP‐relay network to complement the data loss problem in DVB‐H. Assuming that WiMAX networks are adopted to support DVB‐IPDC, this paper points out two critical problems: group packet loss (GPL) and broadcast data handover (BDH). GPL occurs when there is a burst of retransmission requests for the same pieces of data with high spatial or temporal correlation. BDH happens when some devices that made the above requests handover to new serving cells. To solve these problems, we propose lazy wait and group acknowledgement schemes to alleviate duplicate requests by exploiting their spatial and temporal correlations. This not only reduces the requests submitted by neighboring devices in both space and time domains but also avoids handovering devices from sending duplicate requests in new cells. Through mathematical analysis, we show how to adaptively adjust the timers of lazy wait and group acknowledgement based on channel quality. Simulation results prove that our schemes can efficiently reduce retransmission requests and retransmission packets, thus alleviating congestion in the IP‐relay network. Copyright © 2011 John Wiley & Sons, Ltd.

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Section: Preliminariesmentioning

confidence: 99%

A request control scheme for data recovery in DVB‐IPDC systems with spatial and temporal packet loss

Yang¹,

Wang²,

Tseng³

et al. 2011

Wireless Communications

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show abstract

“…In addition, ETSI develops the content delivery protocol [13] to regulate the transmission behaviors in the cellular network. Hummelbrunner et al [14] combine DVB-H with a universal mobile telecommunications system (UMTS) network, where every three HDs are organized into a group. The HD with the strongest received signal strength in each group serves as a super peer to take charge of data recovery for its group members.On the other hand, some studies incorporate DVB-H with a non-cellular network for the data recovery purpose.…”

mentioning

confidence: 99%

Profit‐based exclusive‐or coding algorithm for data retransmission in DVB‐H with a recovery network

Wang

2014

Int J Communication

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SUMMARYThe digital video broadcasting-handheld (DVB-H) standard is developed by European Telecommunications Standards Institute to broadcast digital videos to handheld devices, but data loss is a critical issue due to the broadcast behavior. On the other hand, DVB-Internet protocol datacasting (DVB-IPDC) integrates DVB-H with an Internet protocol-based wireless network to provide bidirectional communication. We adopt this wireless network to deal with data retransmission and call it a recovery network. The paper argues that network coding can improve retransmission efficiency of the recovery network because DVB-H packet loss often exhibits high correlation. In addition, DVB-H packets may be heterogeneous in the sense that they have different importance. According to these two arguments, the paper considers that DVB-H packets are associated with different profit depending on their importance and proposes an˛-maximum profit network coding problem. It asks the base station in the recovery network to use no more than˛coded packets for handheld devices to retrieve the lost DVB-H packets such that the overall profit is the maximum. An efficient exclusive-or coding scheme, namely the profit-based exclusive-or network coding (PEN) algorithm, is proposed to solve this problem. Extensive simulation results also verify the effectiveness of the PEN algorithm.

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Peer to peer mobile TV recovery system

Cited by 2 publications

References 10 publications

A request control scheme for data recovery in DVB‐IPDC systems with spatial and temporal packet loss

A request control scheme for data recovery in DVB‐IPDC systems with spatial and temporal packet loss

Profit‐based exclusive‐or coding algorithm for data retransmission in DVB‐H with a recovery network

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