SCTP

2011 ◽  
pp. 397-414
Author(s):  
Árpád Huszák ◽  
Sándor Imre
Keyword(s):  
Experimental Studies ◽  
Reliable Data ◽  
Transport Layer ◽  
Data Delivery ◽  
Heterogeneous Environment ◽  
Core Network ◽  
Transport Protocols ◽  
Mobile Environment ◽  
User Data ◽  
Handover Process

Numerous protocols were introduced in the transport layer, which can be very different depending on the provided services. Beside the traditional TCP and UDP, new transport protocols (SCTP, DCCP) have appeared in recent years to overcome limitations of the conventional protocols. The unique features of SCTP like multihoming and multistreaming make this protocol very attractive for reliable data delivery of streams, even in a mobile environment. It can be also used for applications where monitoring and detection of loss is required. SCTP is the only transport protocol that is able to manage mobility issues and handle handovers in the transport layer. The multihoming feature allows an endpoint of a SCTP association to be mapped to multiple IP addresses, and change the delivery path according to the link conditions. The handover process is hardly influenced by several protocol parameters that can be adjusted by the user. The effects of different protocol settings are investigated in details in this chapter. We have studied the performance of multihomed SCTP hosts through experimental studies in an integrated heterogeneous environment. SCTP will also play a significant role in future LTE–EPS architecture, because it can also be used for core network signaling purposes, not just for user data delivery.

scholarly journals THE TRANSPORT LAYER OF THE ISO/OSI MODEL IN COM­PUTER NETWORKS

2021 ◽  
Vol 40 (4) ◽  
pp. 49-58
Author(s):  
KOSTIUK Yuliia ◽  
SHESTAK Yaroslav
Keyword(s):  
Data Exchange ◽  
Systematic Approach ◽  
Data Transfer ◽  
Security Protocols ◽  
Reliable Data ◽  
Transport Layer ◽  
Data Delivery ◽  
Data Loss ◽  
The Difference

Background. The transport layer is designed to deliver data without errors, losses and duplication in the order in which they were transmitted. It provides data transfer between two applications with the required level of reliability. Transport layer protocols, which guarantee reliable data delivery, establish a virtual connection before data exchange and resend segments in case of loss or damage. The aim of the study was to determine the role of transport security protocols in computer networks. Materials and methods. To achieve the goal, the study used statistical analysis and a systematic approach. Results. TCP provides reliable message transmission through the formation of logical connections, while allowing peers on the sending computer and the receiving computer to support data exchange in duplex mode. It also has the ability to seamlessly send a byte stream generated on one of the computers to any other computer connected to the network.In addition, TCP controls the connection load, UDP does not control anything but the integrity of the received datagrams. Conclusion. The difference between TCP and UDP is the so-called "delivery guarantee". TCP requires a response from the client to whom the data packet is delivered, confirmation of delivery, and for this he needs a pre-established connection. TCP is also considered reliable, unlike UDP, which is called "unreliable datagram protocol". TCP eliminates data loss, duplication and shuffling of packets, delays, UDP allows all this, and it does not need a connection to work., as a result of which the data is transferred on UDP, should manage received, even with losses.

Transporting the Cloud

2014 ◽  
pp. 135-156
Author(s):  
Claudio Estevez
Keyword(s):  
Cloud Computing ◽  
Mobile Cloud Computing ◽  
Transport Layer ◽  
Mobile Cloud ◽  
Transport Protocols ◽  
End User ◽  
Advantages And Disadvantages ◽  
Processing Power ◽  
And Storage

Cloud computing is consistently proving to be the dominant architecture of the future, and mobile technology is the catalyst. By having the processing power and storage remotely accessible, the main focus of the terminal is now related to connectivity and user-interface. The success of cloud-based applications greatly depends on the throughput experienced by the end user, which is why transport protocols play a key role in mobile cloud computing. This chapter discusses the main issues encountered in cloud networks that affect connection-oriented transport protocols. These issues include, but are not limited to, large delay connections, bandwidth variations, power consumption, and high segment loss rates. To reduce these adverse effects, a set of proposed solutions are presented; furthermore, the advantages and disadvantages are discussed. Finally, suggestions are made for future mobile cloud computing transport-layer designs that address different aspects of the network, such as transparency, congestion-intensity estimation, and quality-of-service integration.

Transport Layer for Cognitive Radio Sensor Networks

2014 ◽  
pp. 231-257
Author(s):  
Yasir Saleem ◽  
Farrukh Salim
Keyword(s):  
Cognitive Radio ◽  
Sensor Networks ◽  
Initial Step ◽  
Design Guidelines ◽  
Transport Layer ◽  
Transport Protocols ◽  
Cognitive Radio Sensor Networks ◽  
Cognitive Radio Sensor Network ◽  
Efficient Delivery ◽  
New Directions

The transport layer is responsible for reliable and energy-efficient delivery of packets from source to destination. Since Cognitive Radio Sensor Network (CRSN) is an emerging technology, there is a need to develop efficient transport layer protocols for it. Therefore, the main goal of this chapter is to provide design guidelines and highlight design issues and challenges of transport protocols for cognitive radio sensor networks. In this chapter, the authors provide a foundation for development of new transport protocols for cognitive radio sensor networks by presenting characteristics and major existing schemes of traditional transport protocols. Additionally, they provide design guidelines and challenges for the development of transport protocols for cognitive radio sensor networks including a guideline on simulation ground for transport protocols. In summary, this chapter is an initial step towards new directions of research and development of transport protocols for cognitive radio sensor networks.

Sabiá: an authentication, authorization, and user data delivery architecture based on user consent for health information systems in Brazil

2020 ◽  
Vol 36 (2) ◽  
pp. 197-202
Author(s):  
Túlio de Paiva Marques Carvalho ◽  
Jailton Carlos de Paiva ◽  
Ricardo Alexsandro de Medeiros Valentim ◽  
Carlos Breno Pereira Silva ◽  
Diêgo Ferreira de Lima ◽  
...  
Keyword(s):  
Information Systems ◽  
Health Information ◽  
Health Information Systems ◽  
Data Delivery ◽  
User Data
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