Early Results on Hydra: A Flexible MAC/PHY Multihop Testbed

Mandke, Ketan; Choi, Sunghee; Kim, Gibeom; Grant, Robert D.; Daniels, Robert C.; Kim, Won-Soo; Heath, Robert W.; Nettles, Scott

doi:10.1109/vetecs.2007.393

Cited by 49 publications

(32 citation statements)

References 12 publications

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“…Our proposal differs from existing experimental network testbeds in that it allows experimentation over production networks (as opposed to [7,10,12]), has wide geographic coverage (as opposed to [11,13]), and extends functionality to end-hosts (as opposed to [1,3,5]). Figure 1 shows data collected in a sample MITATE experiment that investigates the impact of packet size on uplink and downlink transmission delay among mobiles around Bozeman, MT.…”

Section: Mitatementioning

confidence: 99%

MITATE: Mobile Internet Testbed for Application Traffic Experimentation

Goel

Miyyapuram

Wittie

et al. 2014

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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Section: Mitatementioning

confidence: 99%

MITATE: Mobile Internet Testbed for Application Traffic Experimentation

Goel

Miyyapuram

Wittie

et al. 2014

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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“…Due to the flexibility and full accessibility to the PHY and MAC, GNU Radio/USRP platform has been used to prototype MAC protocols that exploit PHY features [42][43][44][45][46]. The Hydra project [42] is a flexible wireless network testbed developed at UT Austin.…”

Section: Related Workmentioning

confidence: 99%

“…The Hydra project [42] is a flexible wireless network testbed developed at UT Austin. The project exploits the Click modular router [47], GNU Radio, and C++ codes to prototype a cross-layer design of a rate adaptive MAC protocol.…”

Section: Related Workmentioning

confidence: 99%

A Distributed Polling Service-Based Medium Access Control Protocol: Prototyping and Experimental Validation

Huang¹,

Walsh²,

Mao³

et al. 2012

Wireless Ad-Hoc Networks

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“…Ref [13] also uses GNU radios for PHY implementation and Click for MAC development and reports preliminary experiments in the Hydra system. Ref [14] proposes the hardware platform, KUAR, to develop the cognitive radio and also incorporate the SDR platforms to control the parameters.…”

Section: Chapter 2 Related Workmentioning

confidence: 99%

MAC protocol adaptation in cognitive radio networks

Huang

Raychaudhuri

2011

2011 IEEE Wireless Communications and Networking Conference

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This thesis presents an adaptive MAC (AMAC) protocol for supporting MAC layer adaptation in cognitive radio networks. MAC protocol adaptation is motivated by the flexibility of emerging software-defined radios which make it feasible to dynamically adjust radio protocols and parameters in order to maintain communications quality.Dynamic changes to the MAC layer may be useful in tactical or vehicular networking scenarios, where radio node density, traffic volumes and service requirements can vary widely over time. A specific control framework for the proposed AMAC algorithm is described based on the "CogNet" protocol stack which uses a Global Control Plane (GCP) to distribute control information between nearby radios. An AMAC prototype which switches between CSMA and TDMA is evaluated for various traffic scenarios using the NS-2 simulator. In addition, a proof-of-concept AMAC is implemented using GNUradio/USRP platforms on the ORBIT radio grid testbed. Detailed simulation and experimental results are given for both UDP and TCP traffic with different usage scenarios and application models. The results show that AMAC can provide improved performance relative to a conventional static system and can be implemented with reasonable control protocol overhead and latency.

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Early Results on Hydra: A Flexible MAC/PHY Multihop Testbed

Cited by 49 publications

References 12 publications

MITATE: Mobile Internet Testbed for Application Traffic Experimentation

MITATE: Mobile Internet Testbed for Application Traffic Experimentation

A Distributed Polling Service-Based Medium Access Control Protocol: Prototyping and Experimental Validation

MAC protocol adaptation in cognitive radio networks

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