The last trends at communications realms, in particular, wireless technologies, where it is more and more usual that devices carry more than one interface (i.e. multi-RAT, Radio Access Technology), to get access to the Internet, question the classic single-path paradigm, imposed by the mainstream transport protocol, TCP. In this work we assess the behavior of Multipath TCP (MPTCP), which allows...

PULC (ParaStation User Level Communication) is a user-level communication library for workstation clusters. PULC provides a multiuser , multi-programming communication library for user-level communication on top of high-speed communication hardware. This paper describes the design of the communication subsystem, a rst implementation on top of the ParaStation communication adapter, and benchmark...

Knowing the capacity of an Internet path is important for efficient network utilization, pricing, and management. Using the capacity information, one can provide better TCP congestion control, multimedia streaming, P2P peer selection, and overlay structuring. Capacity estimation has been extensively studied. Though current approaches have been able to provide fast and accurate capacity estimate...

TCP has been designed and tuned as a reliable transfer protocol for wired links. However, it incurs end-to-end performance degradation in wireless environments where packet loss is very high. TCP HACK (Header Checksum Option) is a novel mechanism proposed to improve original TCP in lossy links. It presents an extension to TCP that enables TCP to distinguish packet corruption from congestion in ...

In this paper we characterize the effective throughput for multi-hop paths in IEEE 802.11n based wireless mesh networks. We derive an analytical model capturing the effects of frame aggregation and block acknowledgements, features found in the new IEEE 802.11n standard. We describe the throughput at MAC layer as a function of bit error rate, aggregation level and path length. Using the results ...

With the proliferation of mobile computing devices, the demand for continuous network connectivity regardless of physical location has spurred interest in the use of mobile ad hoc networks. Since Transmission Control Protocol (TCP) is the standard network protocol for communication in the internet, any wireless network with Internet service need to be compatible with TCP. TCP is tuned to perfor...

Our work aims to assess a multipath transport protocol named MPTCP (Multipath TCP), especially the various congestion control and coupling mechanisms considered for this protocol. Many authors propose to take advantage of the multiple paths that are often available for a data flow to improve its performance and its robustness to the varying transmission conditions. The different layers of the T...

Multipath TCP (MPTCP) is an experimental protocol currently under standardization in the IETF. MPTCP allows to use multiple TCP connections for one data transmission if at least one of the endpoints is multi-homed. For example, this can be a mobile device with a Wifi and a 3G interface. It is assumed that the paths are disjoint or partly disjoint. As such these paths have different transmission...

Software Defined Networking (SDN) and Network Coding (NC) are two key concepts in networking that have garnered much attention in recent years. On the one hand, SDN’s potential to virtualize services in the Internet allows a large flexibility not only for routing data, but also to manage buffering, scheduling, and processing over the network. On the other hand, NC has shown great potential for ...

In this paper, we focus on the performance of TCP enhancements for a hybrid terrestrialsatellite network. While a large body of literature exists regarding modeling TCP performance for the wired Internet, and recently over a single-hop wireless link, the literature is very sparse on TCP analysis over a hybrid wired-wireless (multi-hop) path. We seek to make a contribution to this problem (where...