Optimal settings of maximum transfer unit (MTU) for efficient wireless video communications

Kodikara, C.; Kondoz, A.M.

doi:10.1049/ip-com:20045067

Cited by 7 publications

(2 citation statements)

References 19 publications

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“…The IP fragmentation causes slow network performance due to longer Round Trip Time (RTT) and sometime leads to a total communication failure [24] if the X.509v3 certificate size is too big to be fragmented in to many packets with separate headers, payloads and overheads respectively. To avoid IP fragmentation along the packet transmission path, the PMTUD mechanisms are designed to improve the protocol efficiency [25]. The PMTUD mechanism allows the packets to be fragmented at the source side itself and determines the relevant MTU between the two IP hosts [26], however, this mechanism largely depends on the Internet Control Message Protocol (ICMP) packets which has issues with the path MTU black holes [27], [28], [29].…”

Section: The Pmtud Mechanismmentioning

confidence: 99%

Capability Review of X.509v3 with Link Maximum Transmission Unit in Public Key Infrastructure

Abhishek

2023

Preprint

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The X.509v3 is widely accepted digital certificate format proposed by the International Telecommunication Union (ITU) for Internet applications. The size of the X.509v3 certificate with its extensions has now grown up significantly in the range of 1518 bytes to 200 kilobytes which is much beyond the Maximum Transmission Unit (MTU) sizes of Internet Protocol (IP) based link-layer technologies. The large certificate size leads to poor network performance due to the limited link-layer MTU sizes that causes IP fragmentation and longer Round Trip Time (RTT). We present a comprehensive capability review of X.509v3 digital certificate in light of the link-layer MTU sizes. We also investigate if this certificate format is capable to integrate and process multi-kilobytes long post-quantum key and signature as well as if this certificate size can be reduced to merely few hundred bytes for use by the resource-constrained Internet of Things (IoT) devices to realize a Public Key Infrastructure (PKI) while keeping the network performance intact. In particular, we review the X.509v3 certificate transmission over the Ethernet and IPv6 over 6Low-power Wireless Personal Area Networks (6LoWPAN) networks with a focus on their link MTUs. We also present our recommendations to efficiently handle transmission of both large and small extreme sizes of the X.509v3 certificates over the link-layer MTUs of these technologies.

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Section: The Pmtud Mechanismmentioning

confidence: 99%

Capability Review of X.509v3 with Link Maximum Transmission Unit in Public Key Infrastructure

Abhishek

2023

Preprint

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“…For example, a larger packet is generally more vulnerable to error in error-prone wireless access networks. Some studies investigated the optimal packet size for a wireless network considering both protocol overhead and error [14]. Here, we want to stress that the main problem of the current standard that we want to address in this paper is not size itself but rather inflexibility in size.…”

Section: Encapsulation Of Mpeg2-ts In Rtpmentioning

confidence: 99%

An Efficient Transmission Scheme of MPEG2-TS over RTP for a Hybrid DMB System

Seo¹,

Bae²,

Kim³

2013

ETRI J

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Hybrid digital multimedia broadcasting (DMB) is a next-generation mobile TV system that combines broadcasting and wireless communication networks and can provide various high-quality multimedia services. However, if a system adheres to the current standard of transmitting the DMB content in the form of MPEG2-TS through wireless networks, it results in a burden on the network due to low transmission efficiency. The reasons for the low transmission efficiency are as follows. First, due to its constant bitrate characteristic, DMB MPEG2-TS includes a considerable amount of needless information, such as NULL packets and stuffing bytes. Second, due to the inflexibility of the Real-time Transport Protocol (RTP) standard, one cannot fully utilize the maximum transmission unit of the network when converting MPEG2-TS to RTP stream for transmission. This paper proposes a new transmission scheme that resolves these problems. Experiment results show that the proposed scheme improves data bitrate transmission efficiency by 8% to 36%, compared to the standard scheme, in the streaming of various real-DMB contents.

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Optimal design of virtual links in AFDX networks

et al. 2012

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The Avionics Full Duplex Switched Ethernet (AFDX) backbone constitutes one of the major technological breakthroughs in modern avionic architectures. This network is based on routing Ethernet frames through isolated data tunnels referred to as Virtual Links (VL). VLs can be thought of as multicast trees, each serving for data transmission between one and only one end of the network to several others. Multiple VLs are deployed for exchanging data between avionic systems with a reserved amount of bandwith. In this paper, we propose different methods to define VL characteristics and to route VLs in the network while minimizing the maximum utilization rate of the links. The proposed methods provide the basis for a more efficient design of the VLs, and have to be completed later on by the verification of the worstcase network latencies. The industrial applicability is shown on experimental results and on a representative benchmark.

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Optimal settings of maximum transfer unit (MTU) for efficient wireless video communications

Cited by 7 publications

References 19 publications

Capability Review of X.509v3 with Link Maximum Transmission Unit in Public Key Infrastructure

Capability Review of X.509v3 with Link Maximum Transmission Unit in Public Key Infrastructure

An Efficient Transmission Scheme of MPEG2-TS over RTP for a Hybrid DMB System

Optimal design of virtual links in AFDX networks

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