Coding for energy efficient wireless embedded networks

Karvonen, Heikki; Shelby, Zach; Pomalaza‐Ráez, Carlos

doi:10.1109/iwwan.2004.1525590

Cited by 51 publications

(49 citation statements)

References 3 publications

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“…The figure shows that using the NM as a repeater is more suitable for high rate Hamming codes lengths especially at low SNR. On the other hand, it is more reasonable to consider Rayleigh fading channel in the wireless communications channels (Karyonen & Pomalaza-Ráez, 2004). Slow fading is considered in this work due to the small size of the area under study (100m100m).…”

Section: Simulation Results and Analysismentioning

confidence: 99%

“…ECC can have an adverse effect on network lifetime due to the processing energy consumed for encoding and decoding. Therefore, in this work, the Hamming code will be introduced as an example of ECC due to its wide use in sensor networks (Karyonen & Pomalaza-Ráez, 2004;Sadeghi et al, 2006). It will be compared to the Cyclic Redundancy Check (CRC) as an example of a very widely used error detecting technique (Nguyen, 2005).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Decentralized Clustering Algorithm and Hamming Coding on WSN Lifetime and Throughput

Ali¹,

ElSayed²,

El-Soudani³

et al. 2012

Cutting Edge Research in New Technologies

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Section: Simulation Results and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Decentralized Clustering Algorithm and Hamming Coding on WSN Lifetime and Throughput

Ali¹,

ElSayed²,

El-Soudani³

et al. 2012

Cutting Edge Research in New Technologies

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“…With the evolution, the Unicode was proposed in 1991 [30]. There have been many kinds of TABLE II COMPARISON BETWEEN THE PRSPC-TDC AND THE CONVENTIONAL TDC APPROACH encoding algorithms available for the high-speed communication dc balance, which are 4b/5b, 8b/6t, 8b/10b, and so on [31], [32]. Compared with the conventional communication encoder algorithm, such as the famous 8b/10b or 64b/66b encoding algorithm, the comb-wave modulation algorithm is a more facile approach.…”

Section: B Comb-wave Modulator Block Design Verificationmentioning

confidence: 99%

Ultra Storage-Efficient Time Digitizer for Pseudorandom Single Photon Counter Implemented on a Field-Programmable Gate Array

Tian

Fernando

Soon

et al. 2010

IEEE Trans. Biomed. Circuits Syst.

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Abstract-Pseudorandom single photon counting is a novel time-resolved optical measurement method, which is advantageous over convention techniques in terms of data-acquisition speed and system cost. As a critical component of the pseudorandom single photon counter, the photon arriving time digitizer should be storage efficient for a high photon counting rate, while maintaining good time accuracy. We report an ultra storage-efficient time digitizer for a pseudorandom single photon counter in this paper, which is based on the asynchronous serial communication and can store the arriving time of every photon in 1-b memory space. In addition, a novel comb-wave modulator is proposed to achieve the dc balance required for asynchronous serial communication. Our prototype implemented on field-programmable gate arrays provides a time resolution of 400 ps. It can register up to 4.2-Giga photon arriving time tags with 1024 32-b memory space.Index Terms-Asynchronous serial communication, single photon counter, time digitizer.

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“…For example, classical ARQ protocols used for wireless networks comprise three basic schemes: send-and-wait, Go-back-N and selectiverepeat [18,19]. More recently, ECC has been studied in the context of WSNs for schemes like LDPC codes [5,6,20], RS Codes [3,5,6,15,20,21], BCH Codes [6,22,23], etc. Further, HARQ may combine any of these schemes to form a hybrid scheme of ARQ and ECC.…”

Section: Error Recovery Protocolsmentioning

confidence: 99%

Error resilient data transport in sensor network applications: A generic perspective

Agarwal

Popovici

Sala

et al. 2008

Circuit Theory & Apps

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SUMMARYThe error recovery problem in wireless sensor networks is studied from a generic resource-constrained energy-optimization perspective. To characterize the features of error recovery schemes that suit the majority of applications, an energy model is developed and inferences are drawn based on a suitable performance metric. For applications that require error control coding, an efficient scheme is proposed based on an interesting observation related to shortened Reed-Solomon (RS) codes for packet reliability. It is shown that multiple instances ( ) of RS codes defined on a smaller alphabet combined with interleaving results in smaller resource usage, while the performance exceeds the benefits of a shortened RS code defined over a larger alphabet. In particular, the proposed scheme can have an error correction capability of up to times larger than that of the conventional RS scheme without changing the rate of the code with much lower power, timing and memory requirements. Implementation results show that such a scheme is 43% more power efficient compared with the RS scheme with the same code rate. Besides, such an approach results in 46% faster computations and 53% reduction in memory requirements.

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Coding for energy efficient wireless embedded networks

Cited by 51 publications

References 3 publications

Effect of Decentralized Clustering Algorithm and Hamming Coding on WSN Lifetime and Throughput

Effect of Decentralized Clustering Algorithm and Hamming Coding on WSN Lifetime and Throughput

Ultra Storage-Efficient Time Digitizer for Pseudorandom Single Photon Counter Implemented on a Field-Programmable Gate Array

Error resilient data transport in sensor network applications: A generic perspective

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