Unified Link Layer API: A generic and open API to manage wireless media access

Sooriyabandara, Mahesh; Farnham, Tim; Efthymiou, Costas; Wellens, M.; Riihijärvi, Janne; Mähönen, Petri; Gefflaut, Alain; Galache, José Antonio; Melpignano, D.; Rooijen, Arthur van

doi:10.1016/j.comcom.2007.12.025

Cited by 19 publications

(17 citation statements)

References 11 publications

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“…They work as a kind of standard wrapper to access pre-implemented existing protocols or layers during an experiment. Examples of such tools include ULLA [18], DEC [19], Universal Convergence Layer (UCL) [20], and XIAN [21].…”

Section: A Software Toolsmentioning

confidence: 99%

On software tools and stack architectures for wireless network experiments

Abdallah

MacKenzie

DaSilva

et al. 2011

2011 IEEE Wireless Communications and Networking Conference

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Abstract-Simulation is still the most widely adopted performance evaluation technique in mobile ad hoc network research, in spite of a growing number of questions about the fidelity of this technique. Implementation-based testing and evaluation of wireless networks tends to produce believable results, but the technique sometimes suffers from poor repeatability, high implementation cost, and complex experimental logistics. The topic of this paper is software tools to enable implementationbased experimental research on wireless networks. We review some of the existing tools and propose the Flexible Internetwork Stack (FINS) framework, our open-source solution for network protocol implementation, integration, and testing. FINS aims to provide researchers with monitoring, logging, and reconfiguring utilities similar to the ones provided by simulation environments or emulation testbeds.

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Section: A Software Toolsmentioning

confidence: 99%

On software tools and stack architectures for wireless network experiments

Abdallah

MacKenzie

DaSilva

et al. 2011

2011 IEEE Wireless Communications and Networking Conference

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“…All contemporary operating systems employ some form of abstraction. While such abstractions may be traced back to early research systems such as Multics [26], the Unix operating system [31], and its progeny, it is instructive to concentrate on four techniques targeted specifically at abstracting hardware resources-(1) application programming interfaces (APIs) for specific layers in network protocol stacks of resource-constrained embedded systems, such as ULLA [36]; (2) the 4.4 BSD device driver interface; (3) the Plan 9 and Inferno operating system device interfaces; (4) driver, protocol and networking stack specification languages such as Devil [23], NDL [7], Zebu [6], Prolac [18], and Click [19]. While occurring in different topic areas of the computing systems milieu, the insights from these systems are relevant to LR-WPANs.…”

Section: Better Portability Through Abstractionmentioning

confidence: 99%

“…ULLA is however neither concerned with the portability of the actual link layer implementation across radio transceiver hardware, nor with portability of the link layer implementation across operating system platforms which may provide different facilities to the link layer implementation. A prototype ULLA implementation [36] occupies a memory footprint of approximately 200 KB, an order of magnitude more than the total memory available on the platforms of interest in LR-WPANs.…”

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confidence: 99%

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Portability in MAC protocol and transceiver software implementations for LR‐WPAN platforms

Schoofs

Stanley-Marbell

2010

Softw Pract Exp

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In a variety of emerging networked computing system domains over the years, there have been bursts of activity on new medium access control (MAC) protocols, as new communication transceiver technologies with greater data‐movement performance or lower power dissipation have been introduced. To enable implementations flexible to evolving standards and improving application‐domain insight, such MAC protocols are typically initially implemented in software, and interface between applications or system software, typically executing on an embedded processor or microcontroller, and the evolving radio transceiver hardware. Many challenges exist in implementing MAC protocols across evolving or competing transceiver hardware implementations and processor architectures. Some of these challenges are peculiar to the requirements of MAC protocols, and others are a result of the plethora of system and processor architectures in the embedded systems domain. This article studies the challenges facing software implementations of MAC protocols running on embedded microcontrollers, and interfacing with radio transceiver hardware. Experience with an implementation of the IEEE 802.15.4 MAC across three hardware platforms with different processor, system, and systems software architectures is presented, focusing on implementation approach and interfaces. Pitfalls are pointed out, and guidelines are provided for ensuring that new MAC implementations are easily portable across processor architectures and transceiver hardware. Copyright © 2010 John Wiley & Sons, Ltd.

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“…The use of such abstraction allows to design adaptation mechanisms which are not tied to a specific layer implementation and protocol, hence more portable. Similarly, the Unified Link Layer API [12] can be used by applications desiring to get the necessary information to adapt their settings to the current conditions. In all these instances, though, optimization choices are still made locally by each application.…”

Section: Introductionmentioning

confidence: 99%

Context-adaptive vehicular network optimization

Mehani

Boreli

Ernst

2009

2009 9th International Conference on Intelligent Transport Systems Telecommunications, (ITST)

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Abstract-We propose a framework to optimize the communication performance and mobility management in vehicular networks. By having a single unified decision algorithm taking into account both stack-related and external contextual information such as GPS localization or signaling from other nodes, advice can be provided to every layer in the network stack to allow for globally optimized, faster and more accurate adaptation to the current conditions. We present how key example scenarios would benefit from such a system. We describe an instance of this framework using a constraint satisfaction problem (CSP) approach. We also describe our prototype implementation of the network data collection system and give some timing evaluation for a given constraint solver.Index Terms-IPv6, mobility, multihoming, contextaware, performance optimization, constraint satisfaction I. Introduction Vehicular networks present a heterogeneous environment based on a large variety of technologies. Several networking solutions can be used to establish communication channels with other vehicles (V2V), the infrastructure (V2I) or the internet. It is thus not uncommon to see vehicular communication solutions built on top of various physical technologies such as GPRS, UMTS, various flavors of the 802.11 standard or the more recent WiMAX.However both IP-and non IP-based network protocols have been proposed, current standardization works advocate the use of IPv6 at the network layer [1]. Vehicles can then benefit from direct connectivity to the internet as well as native support for host and network mobility to maintain application-level communication. Having more than one network interface is additionally becoming common. Vehicles can then take part in several networks at once e.g., a Vehicular Ad-hoc NETwork (VANET) for local communication and a WWAN for longer distance communication. Such multihoming, with peers potentially reachable via several disjoint networks, prompts the need for routes and interface selection support in order to achieve good performance e.g., not using the WWAN when a direct VANET route exists [2].Most currently available network stacks are designed following the layered design of the OSI model. As upper

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Unified Link Layer API: A generic and open API to manage wireless media access

Cited by 19 publications

References 11 publications

On software tools and stack architectures for wireless network experiments

On software tools and stack architectures for wireless network experiments

Portability in MAC protocol and transceiver software implementations for LR‐WPAN platforms

Context-adaptive vehicular network optimization

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