Abstract:Network-based Localized Mobility Management (NetLMM) is considered as the future solution for the IP mobility management confined within the access network, as well as a solution for inter-access system handover between 3GPP and non-3GPP. In this paper, we enhance NetLMM to support simultaneous use of radio interfaces in 4G environments consisting of multi-interface mobile nodes and heterogeneous access technologies. All issues on how to manage and to use multiple interfaces simultaneously in NetLMM are identi… Show more
“…Another set of transport solutions [36][37][38][39][40][41][42][43] require the modification of existing protocols such as SCTP and TCP. Both sets of solutions require the use of a scheduling algorithm to determine the amount of traffic to be sent on each network interface.…”
Abstract:The Transmission Control Protocol (TCP) is the most used transport protocol to exchange reliable data between network devices. A considerable number of extensions have been implemented into TCP to achieve better performance. In this paper, we will present, describe, implement, and analyze a new protocol extension called Bandwidth-Aggregation TCP (BATCP), which enables the concurrent use of network interfaces, to improve network performance on multi-homed nodes. BATCP allows the use of multiple TCP connections to accept multiple IP addresses from a multi-homed node, scheduling segments among them based on a scheduling algorithm. Our results show that BATCP achieves full exploitation of each network interface, achieving up to 100% network utilization using two ADSL connections in real-world scenarios. MultiPath TCP (MPTCP) is currently being standardized, and achieves up to 96% of network utilization when in ideal conditions. BATCP and MPTCP are the only protocols tested on real-world scenarios. Related work such as the Proxy Inverse Multiplexer, called PRISM, and bandwidth aggregation with Stream Control Transmission Protocol (SCTP) achieve 80% utilization or less with network simulators.
“…Another set of transport solutions [36][37][38][39][40][41][42][43] require the modification of existing protocols such as SCTP and TCP. Both sets of solutions require the use of a scheduling algorithm to determine the amount of traffic to be sent on each network interface.…”
Abstract:The Transmission Control Protocol (TCP) is the most used transport protocol to exchange reliable data between network devices. A considerable number of extensions have been implemented into TCP to achieve better performance. In this paper, we will present, describe, implement, and analyze a new protocol extension called Bandwidth-Aggregation TCP (BATCP), which enables the concurrent use of network interfaces, to improve network performance on multi-homed nodes. BATCP allows the use of multiple TCP connections to accept multiple IP addresses from a multi-homed node, scheduling segments among them based on a scheduling algorithm. Our results show that BATCP achieves full exploitation of each network interface, achieving up to 100% network utilization using two ADSL connections in real-world scenarios. MultiPath TCP (MPTCP) is currently being standardized, and achieves up to 96% of network utilization when in ideal conditions. BATCP and MPTCP are the only protocols tested on real-world scenarios. Related work such as the Proxy Inverse Multiplexer, called PRISM, and bandwidth aggregation with Stream Control Transmission Protocol (SCTP) achieve 80% utilization or less with network simulators.
“…Since the enthusiasm of multihoming support is very high in IETF, it is highly possible to discuss an extension to Proxy Mobile IPv6 in near future. In research stage, Reference 15 discusses the capability of multihoming support on Proxy Mobile IPv6 by using the virtual SCTP tunnel.…”
Section: Inter Radio Technology Handoffs Support On Proxy Mobile Ipv6mentioning
Proxy Mobile IPv6 has been standardized by the IETF recently. It is a network-based mobility management protocol based on Mobile IPv6. There is significant interest from various standards bodies for its adoption in 4G networks as the key mobility management protocol. It is being seen as the protocol for achieving a common mobile core network, accommodating various access technologies such as WiMAX, 3GPP and 3GPP2 radio networks. One of the key aspects of the protocol is the support for inter-technology handoffs. The Proxy Mobile IPv6 network allows the mobile node to perform handoff between different access technologies and the network will ensure the terminal obtains the same address configuration as before. However there is no study on the required software function on the host for performing inter-technology handoffs and with the goal of session survivability across handoffs. This paper analyzes from the mobile node's perspective on the potential approaches for achieving this and without requiring any changes to the host. It explores the use of virtual interface support available in Linux as one of the approaches and demonstrates that it is a simple host configuration and does not require any host stack changes. It also provides the results from the inter-technology handoff experiments running with our Proxy Mobile IPv6 implementation.
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