Code division multiple access/pulse position modulation ultra‐wideband radio frequency identification for Internet of Things: concept and analysis

Zhi, Zhang; Lu, Zhonghai; Chen, Qiang; Yan, Xiao; Zheng, Lirong

doi:10.1002/dac.2312

Cited by 23 publications

(13 citation statements)

References 28 publications

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“…A one-dimensional Logistic map is the simplest and most widely studied nonline chaotic system. The logistic-map can be described by the following simple equation: x k+1 = rx k (1−x k ), 1≤r≤4, 0<x k <1, k = 0,1,2,.. (1) This equation denotes the growth of the population x to the time k+1 from the time k by the growth factor of r .The term (1−x k ) represents a growth inhibition, since the term becomes smaller as x k approaches 1.…”

Section: Chaos Parallelizable Identificationmentioning

confidence: 99%

“…(2) The required time slots vs number of tags Figure 4 presents the relationship between the required time slots .The parameter settings is as in (1).…”

Section: The Proposed Protocol Performance Analysismentioning

confidence: 99%

“…It is necessary to mitigate or solve the tag collision and security problem so as to promote the applications of RFID [1].Anti-collision schemes are built upon four multiplexing access technologies: CDMA, TDMA, FDMA and SDMA [2]. In RFID applications, the TDMA suffers from a large number of collisions.…”

mentioning

confidence: 99%

“…It is necessary to mitigate or solve the tag collision and security problem so as to promote the applications of RFID [1].…”

mentioning

confidence: 99%

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Design of anti-collision integrated security mechanism based on chaotic sequence in UHF RFID system

et al. 2014

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RFID applications. It is necessary to mitigate or solve the tag collision and security problem so as to promote the applications of RFID [1].Anti-collision schemes are built upon four multiplexing access technologies: CDMA, TDMA, FDMA and SDMA [2]. In RFID applications, the TDMA suffers from a large number of collisions. The result is an increase in tag identification time and lower system throughput. Both techniques, SDMA and FDMA, are relatively expensive, and thus restricted to specialized applications. CDMA technology can be very attractive for RFID communication [3]. But due to the limited number of the codes, CDMA techniques are commonly combined with DSFA schemes [2,4] . In RFID privacy and security, most typical hash-based RFID protocols for mutual authentication have been proposed including the Hash-Lock protocol, the randomized Hash-Lock protocol, and Hash chain protocol and LCAP protocol, which take advantage of a one-way function to prevent direct exposure of ID [5] . But these methods often suffer from de-synchronization attack. Other solutions for RFID [6], such as DES or AES, are relatively more expensive than hash functions.The merging of RFID security and anti-collision is a new trend in RFID research. The [7] proposes a lightweight random key double-authentication, but the DSFA algorithm cannot Abstract: Collision and security issues are considered as barriers to RFID applications. In this paper, a parallelizable anti-collision based on chaotic sequence combined dynamic frame slotted aloha to build a high-efficiency RFID system is proposed. In the tags parallelizable identification, we design a Discrete Markov process to analyze the success identification rate. Then a mutual authentication security protocol merging chaotic anti-collision is presented. The theoretical analysis and simulation results show that the proposed identification scheme has less than 45.1 % of the identification time slots compared with the OVSF-system when the length of the chaos sequence is 31. The success identification rate of the proposed chaotic anti-collision can achieve 63% when the number of the tag is 100. We test the energy consumption of the presented authentication protocol, which can simultaneously solve the anti-collision and security of the UHF RFID system.

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Section: Chaos Parallelizable Identificationmentioning

confidence: 99%

“…(2) The required time slots vs number of tags Figure 4 presents the relationship between the required time slots .The parameter settings is as in (1).…”

Section: The Proposed Protocol Performance Analysismentioning

confidence: 99%

mentioning

confidence: 99%

“…It is necessary to mitigate or solve the tag collision and security problem so as to promote the applications of RFID [1].…”

mentioning

confidence: 99%

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Design of anti-collision integrated security mechanism based on chaotic sequence in UHF RFID system

et al. 2014

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“…Ultra‐wideband (UWB) has a broad application foreground in both civil and military wireless communication fields (e.g., ). Considering its low power spectral density, it is difficult to detect UWB signals in complex electromagnetism environment exactly and demodulate transmitted information correctly.…”

Section: Introductionmentioning

confidence: 99%

A novel compressed sensing ultra‐wideband channel estimation method based on non‐convex optimization

Wang

Yang

Zhang

2013

Int J Communication

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Summary Due to the low power spectral density and complicated transfer propagation of ultra‐wideband (UWB) signal, it is important to estimate UWB channel accurately. But it is difficult to sample UWB signals directly due to their wider band width. However, compressed sensing (CS) theory provides a feasible way through lower sampling speed. Common CS‐UWB channel estimation methods adopt convex optimization, non‐sparse or non‐restricted form. In order to strengthen the restriction on sparsity of the reconstructed channel vector, a non‐convex optimization method is proposed in this paper to estimate UWB channel. Proposed method sets the objective function as a non‐convex optimization model using lp–norm. This model is combined as a convex function to approximate the objective function and reconstruct the UWB channel vector iteratively. Because lp–norm is closer to l0–norm than l1 and l2–norm, its restriction on sparsity of objective vector is stricter. The simulation results show that this method can enhance reconstruction performance compared with existing CS‐UWB channel estimation methods. Copyright © 2013 John Wiley & Sons, Ltd.

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Comparison of GA and DDE for optimizing coverage in indoor environment

Liao

Chiu

2013

Int J Communication

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SUMMARY This paper presents a method for determining the required number and locations of transmitting antennas to optimize wireless propagation coverage in indoor ultra‐wideband communication system. In the coverage prediction model, we use the three‐dimensional ray‐tracing technique associated to a genetic algorithm and a dynamic differential evolution for optimizing the transmitting antennas location in an indoor environment. The ray‐tracing method is employed to calculate the field strength from one or more transmitting antennas, and the optimization algorithm is used to determine the required number and locations of these antennas to achieve optimized wireless coverage in the indoor environment. The combined three‐dimensional ray‐tracing and optimization algorithm was applied in the indoor environment to find the best location of the transmitting antennas by maximizing the power in the coverage area. The use of deployments to minimize the transmitting antennas and maximize the power in the coverage area was proposed. Obtained simulation results illustrate the feasibility of using the integrated ray‐tracing and optimization method to find the optimal transmitter locations in determining the optimized coverage of a wireless network. The dynamic differential evolution has better optimization results compared with the genetic algorithm. The investigated results can help communication engineers improve their planning and design of indoor wireless communication. Copyright © 2013 John Wiley & Sons, Ltd.

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Code division multiple access/pulse position modulation ultra‐wideband radio frequency identification for Internet of Things: concept and analysis

Cited by 23 publications

References 28 publications

Design of anti-collision integrated security mechanism based on chaotic sequence in UHF RFID system

Design of anti-collision integrated security mechanism based on chaotic sequence in UHF RFID system

A novel compressed sensing ultra‐wideband channel estimation method based on non‐convex optimization

Comparison of GA and DDE for optimizing coverage in indoor environment

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