A Novel Approach to Supporting Multipoint-to-Point Video Transmission over Wireless Ad Hoc Networks

Chow, Chee Onn; Ishii, Hiroshi

doi:10.1093/ietcom/e90-b.8.2046

Cited by 4 publications

(10 citation statements)

References 22 publications

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“…This method incorporates Multiple Description Coding (MDC) with multipoint-topoint (MP2P) video transmission [9]. The basic mechanisms of our proposal are as follows.…”

Section: Proposed Methodsmentioning

confidence: 99%

“…This method routes an MDC coded video stream on disjoint routes independently to improve the rate of viewable frames at the receiving node [9]. In addition, we have proposed an improved routing algorithm to avoid duplicated routes, and have demonstrated a performance improvement.…”

Section: Introductionmentioning

confidence: 99%

“…9 and the prerequisites of this study. Sections 3 and 4 show the performance of our proposal by network simulation and a test bed experiment, respectively.…”

Section: Introductionmentioning

confidence: 99%

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A study on video performance of multipoint‐to‐point video streaming with multiple description coding over ad hoc networks

Utsu

Chow

Ishii

2009

Electrical Engineering Japan

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SUMMARYSupporting multimedia applications over wireless networks has become a very active research topic recently because video applications are forecast to receive high demand in future wireless networks, such as ad hoc networks. However, enabling video transmission over wireless ad hoc networks is more challenging than over other wireless networks due to node mobility, interference, and the absence of a supporting infrastructure. This paper addresses the problem of video transmission over ad hoc networks. We propose to combine Multiple Description Coding (MDC) with multiple source transport (Multipoint-to-Point transfer: MP2P) in order to maintain smooth video streaming over wireless ad hoc networks. In this paper, we describe a comprehensive simulation and test bed experiment designed to show the effect of the proposed MP2P video transfer with MDC for two description cases of video streaming over wireless ad hoc networks. The results show that the proposed mechanism successfully improves video transfer performance in terms of video packet reachability and throughput.

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“…This method incorporates Multiple Description Coding (MDC) with multipoint-topoint (MP2P) video transmission [9]. The basic mechanisms of our proposal are as follows.…”

Section: Proposed Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A study on video performance of multipoint‐to‐point video streaming with multiple description coding over ad hoc networks

Utsu

Chow

Ishii

2009

Electrical Engineering Japan

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“…Therefore, it does not suit to provide 1seg video forwarding services. Chow et al proposed the multi-path video forwarding method [6] that allows multiple nodes in the wired network to cooperatively transmit a video to a node, taking into account ad hoc network characteristics. In this study, the video playback quality at the receiver node is improved by using Multi Description Coding and Multipoint-to-Point transmission.…”

Section: Related Workmentioning

confidence: 99%

Improving mobile terrestrial TV playback quality with cooperative streaming in MANET

Yasumoto

Nunokawa

Sun

et al. 2011

2011 IEEE Wireless Communications and Networking Conference

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In this paper, we propose a method for improving the playback quality of one segment terrestrial television broadcasting (called 1seg, hereafter) at mobile terminals staying in a weak 1seg radio reception area (called WRA terminals) by wireless multi-hop video streaming from terminals in strong 1seg radio area (called SRA terminals). First, we formulate the problem to derive the set of video forwarding paths that maximize the number of WRA terminals to be "relieved" by receiving the forwarded video, under the constraints on the wireless bandwidth and the maximum number of hops. Since this problem is NP-hard and deriving the optimal solution in real-time is infeasible, we propose a greedy algorithm that each WRA terminal find a video forwarding path from a SRA terminal receiving the required 1seg channel based on the information periodically exchanged among neighboring terminals. In order to increase the number of relieved terminals, we introduce a technique to let a SRA terminal change its watching 1seg channel, forward the video to a WRA terminal, and ask for the relief for itself. Through computer simulations, we confirme that the proposed algorithm with 2-hop relief paths improved the video playback quality in more than 60% of the total WRA staying time.

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“…Mao et al in [2] propose three schemes which combine multistream coding with multipath transport, and prove that, in addition to Error Correction Coding (ECC), path diversity presents an effective way to combat transmission error in Ad Hoc networks. In [3] CheenOnn et al use a standard ECC mechanism, and propose a novel approach supporting Multipoint-to-Point Multiple Description Coding (MDC) video stream over Ad Hoc network. An Unequal Error Protection (UEP) solution based on the number of simultaneous retransmitted packets according to its importance is presented in [4].…”

Section: Introductionmentioning

confidence: 99%

Impact of realistic MIMO physical layer on video transmission over mobile Ad Hoc network

Hamidouche

Vauzelle

Olivier

et al. 2009

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications

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In this paper we investigate the impact of a realistic physical layer on the H.264/AVC video transmission over Ad Hoc networks in urban environment. We propose a realistic Multiple Input Multiple Output (MIMO) physical layer which combines a determinist propagation model and a fine-grained model of wireless transmission errors. The determinist propagation model takes into account all the environmental characteristics (geometric and electric) and provides all the information of the multi-path channel (received power, complex impulse response). The wireless transmission errors model is based on a BER computation. The BER is calculated according to 802.11n standard to evaluate MIMO wireless links and, then, is compared to both SISO configuration and an existing wireless errors model using empirical propagation models. In the case of a SISO configuration, the BER is computed according to 802.11a standard. The simulation results show clearly a significant difference in term of QoS for the video transmission using realistic and empirical physical layer. In addition, the MIMO system, compared to a SISO one, improves the quality of links in the network and, thus, provides a better QoS for video transmission over Ad Hoc networks.

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A Novel Approach to Supporting Multipoint-to-Point Video Transmission over Wireless Ad Hoc Networks

Cited by 4 publications

References 22 publications

A study on video performance of multipoint‐to‐point video streaming with multiple description coding over ad hoc networks

A study on video performance of multipoint‐to‐point video streaming with multiple description coding over ad hoc networks

Improving mobile terrestrial TV playback quality with cooperative streaming in MANET

Impact of realistic MIMO physical layer on video transmission over mobile Ad Hoc network

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