Decomposable MAC Framework for Highly Flexible and Adaptable MAC Realizations

Ansari, Junaid; Zhang, Xi; Achtzehn, Andreas; Petrova, Marina; Mähönen, Petri

doi:10.1109/dyspan.2010.5457926

Cited by 16 publications

(16 citation statements)

References 4 publications

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“…In this domain, aspects like adaptability and flexibility are very important. We agree with Ansari et al [22] [23] that a MAC protocol implemented in a monolithic fashion with tight coupling to the underlying hardware restricts these aspects. The authors propose a decomposable MAC framework by defining a set of MAC functionalities (blocks) as a library.…”

Section: Non-wsn Domainssupporting

confidence: 80%

snapMac: A generic MAC/PHY architecture enabling flexible MAC design

et al. 2014

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Timing is a key issue in many wireless, lower-layer (e.g., physical and data link layer) communication protocols. Maintaining time-critical behavior while increasing MAC protocol complexity is the challenge for many MAC implementations. To comply with stringent time constraints, current MAC implementations typically require such a tight integration to the radio driver that they become one monolithic block of code with MAC-specific logic hard coded at the lowest firmware level. Execution of time-critical functions in the firmware is a good strategy, but results in limited flexibility for MAC designers because the radio driver is dedicated for specific MAC protocol logic. We propose "snapMac": a generic MAC/PHY architecture with a clean separation between the MAC protocol logic at the user level and the execution at the radio firmware level. Our generic programming interface enables more flexibility, an easy way to compose new MAC designs, and getting feedback from the radio capabilities We demonstrate the feasibility and performance of this architecture by implementing it on a resource-constrained wireless sensor node. The experimental evaluation shows, for example, that we can simultaneously keep the flexibility of a software ACK and meet the ACK timing $ Readers are reminded to treat all the data as being strictly CONFIDENTIAL during the review process. Before publishing this manuscript we first need to file our patent application.* Corresponding author * * Principal corresponding author constraints as specified in the 802.15.4 standard. We also achieve 97% (i.e., 218 kbit/s) of the theoretical 802.15.4 throughput. This new implementation approach for MAC / PHY interactions has potential to be applied in other domains (e.g., WiFi, software defined radio, cognitive radio, etc.). Demonstrating the portability of snapMac is future work. "snapMac" enables the design and execution of new MAC protocols in a snap.

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Section: Non-wsn Domainssupporting

confidence: 80%

snapMac: A generic MAC/PHY architecture enabling flexible MAC design

et al. 2014

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“…Despite the above discussed advances in programmable wireless systems, we share with a few other recent works [12], [13] the belief that wireless access programmability should go well beyond the ability to just "hack" firmware/software code implementing a pre-established MAC protocol stack, and should rather be designed into the MAC stack architecture.…”

Section: From Wireless Cards To Wireless Processorsmentioning

confidence: 93%

“…Although we are the first to use the convenient and descriptive term Wireless MAC processor, we do not claim the novelty of the underlying MAC decomposition idea, which appears for instance in [12], [13]. Rather, besides the technical differences discussed in section II, we believe that our most distinguishing achievement is providing an architectural solution able to clearly decouple what the device is able to do (the pre-installed MAC commands) from what it is instructed -at run time -to do (the injected state machine).…”

Section: Our Contributionmentioning

confidence: 99%

Wireless MAC processors: Programming MAC protocols on commodity Hardware

Tinnirello

Bianchi

Gallo

et al. 2012

2012 Proceedings IEEE INFOCOM

110

108

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Programmable wireless platforms aim at responding to the quest for wireless access flexibility and adaptability. This paper introduces the notion of wireless MAC processors. Instead of implementing a specific MAC protocol stack, Wireless MAC processors do support a set of Medium Access Control "commands" which can be run-time composed (programmed) through software-defined state machines, thus providing the desired MAC protocol operation. We clearly distinguish from related work in this area as, unlike other works which rely on dedicated DSPs or programmable hardware platforms, we experimentally prove the feasibility of the wireless MAC processor concept over ultracheap commodity WLAN hardware cards. Specifically, we reflash the firmware of the commercial Broadcom AirForce54G off-the-shelf chipset, replacing its 802.11 WLAN MAC protocol implementation with our proposed extended state machine execution engine. We prove the flexibility of the proposed approach through three use-case implementation examples.

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“…Our approach of composing MAC protocols based on the same set of functional components using the wiring engine, leads to the realization of a wide range of protocols and allows run-time adaptation [17]. We are also investigating the design of a MAC description language and correspondingly a MAC interpreter.…”

Section: B Cognitive Radiomentioning

confidence: 99%

2PARMA: Parallel Paradigms and Run-Time Management Techniques for Many-Core Architectures

Silvano

Fornaciari

Reghizzi

et al. 2010

2010 IEEE Computer Society Annual Symposium on VLSI

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Abstract-The 2PARMA project focuses on the development of parallel programming models and run-time resource management techniques to exploit the features of many-core processor architectures.The main goals of the 2PARMA project are: the definition of a parallel programming model combining component-based and singleinstruction multiple-thread approaches, instruction set virtualisation based on portable byte-code, run-time resource management policies and mechanisms as well as design space exploration methodologies for manycore computing architectures.

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Decomposable MAC Framework for Highly Flexible and Adaptable MAC Realizations

Cited by 16 publications

References 4 publications

snapMac: A generic MAC/PHY architecture enabling flexible MAC design

snapMac: A generic MAC/PHY architecture enabling flexible MAC design

Wireless MAC processors: Programming MAC protocols on commodity Hardware

2PARMA: Parallel Paradigms and Run-Time Management Techniques for Many-Core Architectures

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