Pub Date : 2013-05-16DOI: 10.1109/WOCC.2013.6676423
Jinghui Zhang, Tong Ye, T. Lee, Fangfang Yan, Weisheng Hu
Although the quasi-static scheduling based on Birkhoff-von-Neumann (BvN) decomposition can achieve high throughput with low operational complexity, its performance becomes less predictable when the input traffic is bursty. In this paper, we propose a deflection-compensated BvN (D-BvN) switch to enhance the performance. The D-BvN switch provides capacity guarantee for each virtual circuit (VC) by the BvN decomposition of average input traffic matrix, while copes with traffic burst by deflection. In particular, deflection scheme fully utilizes the spare capacity of starving VCs to deflect overflow traffic to other VCs and provide bandwidth for deflection traffic to re-access its desired VC. Analytical and simulation results show that it can achieve close to 100% throughput of offered load and the packet out-of-sequence probability is also negligible.
{"title":"Deflection-compensated Birkhoff-von-Neumann switches","authors":"Jinghui Zhang, Tong Ye, T. Lee, Fangfang Yan, Weisheng Hu","doi":"10.1109/WOCC.2013.6676423","DOIUrl":"https://doi.org/10.1109/WOCC.2013.6676423","url":null,"abstract":"Although the quasi-static scheduling based on Birkhoff-von-Neumann (BvN) decomposition can achieve high throughput with low operational complexity, its performance becomes less predictable when the input traffic is bursty. In this paper, we propose a deflection-compensated BvN (D-BvN) switch to enhance the performance. The D-BvN switch provides capacity guarantee for each virtual circuit (VC) by the BvN decomposition of average input traffic matrix, while copes with traffic burst by deflection. In particular, deflection scheme fully utilizes the spare capacity of starving VCs to deflect overflow traffic to other VCs and provide bandwidth for deflection traffic to re-access its desired VC. Analytical and simulation results show that it can achieve close to 100% throughput of offered load and the packet out-of-sequence probability is also negligible.","PeriodicalId":210863,"journal":{"name":"Wireless and Optical Communications Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114351018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1109/WOCC.2016.7506557
Qian Cheng, Jiang Zhu
A new wireless secure communication scheme based on polarization scrambling is proposed and analyzed from a secrecy-capacity standpoint. In this approach, the polarization characteristics of transmitting and receiving antennas are controlled by a varying regularity rather than remaining fixed, which is equivalent to scramble the polarization characteristics of antennas. If the eavesdropper doesn't know the varying regularity, it will never recover the original transmitting signals correctly, which guarantees the security of the proposed approach. The simulated results demonstrate that the proposed approach indeed can provide high secrecy capacity and low BER for the legitimate receiver, and it can still achieve positive secrecy capacity even though the legitimate receiver's channel is worse than the eavesdropper's.
{"title":"A wireless secure communication scheme based on polarization scrambling","authors":"Qian Cheng, Jiang Zhu","doi":"10.1109/WOCC.2016.7506557","DOIUrl":"https://doi.org/10.1109/WOCC.2016.7506557","url":null,"abstract":"A new wireless secure communication scheme based on polarization scrambling is proposed and analyzed from a secrecy-capacity standpoint. In this approach, the polarization characteristics of transmitting and receiving antennas are controlled by a varying regularity rather than remaining fixed, which is equivalent to scramble the polarization characteristics of antennas. If the eavesdropper doesn't know the varying regularity, it will never recover the original transmitting signals correctly, which guarantees the security of the proposed approach. The simulated results demonstrate that the proposed approach indeed can provide high secrecy capacity and low BER for the legitimate receiver, and it can still achieve positive secrecy capacity even though the legitimate receiver's channel is worse than the eavesdropper's.","PeriodicalId":210863,"journal":{"name":"Wireless and Optical Communications Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117223505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1109/WOCC48579.2020.9114935
Gerardo Ramirez, F. Pena, R. Parra-Michel, V. Kontorovich
Differential phase shift keying (DPSK) is a promising approach for reducing the overhead and computational complexity involved in upcoming multiple input-multiple output links. This technique has some intrinsic benefits, that provide invariance to certain channel distortions depending of the order of modulation used, for example, initial phase introduced by the channel, Doppler Shifts and Carrier Frequency Offset (CFO). This work, will provide a generalization of a DPSK noncoherent autocovariance receiver for any size of $Ntimes N$ MIMO array and any order of difference modulation.
{"title":"Non-coherent autocovariance receiver for DPSK-k modulation invariant to channel distortions","authors":"Gerardo Ramirez, F. Pena, R. Parra-Michel, V. Kontorovich","doi":"10.1109/WOCC48579.2020.9114935","DOIUrl":"https://doi.org/10.1109/WOCC48579.2020.9114935","url":null,"abstract":"Differential phase shift keying (DPSK) is a promising approach for reducing the overhead and computational complexity involved in upcoming multiple input-multiple output links. This technique has some intrinsic benefits, that provide invariance to certain channel distortions depending of the order of modulation used, for example, initial phase introduced by the channel, Doppler Shifts and Carrier Frequency Offset (CFO). This work, will provide a generalization of a DPSK noncoherent autocovariance receiver for any size of $Ntimes N$ MIMO array and any order of difference modulation.","PeriodicalId":210863,"journal":{"name":"Wireless and Optical Communications Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126495975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1109/WOCC.2013.6676405
Weihong Wang, Shusheng Zheng, Chunping Wang
Reprogramming is essential to wireless sensor networks. Current research in reprogramming is almost based on update function of all nodes in a network, the nodes in target area do special task is seldom discussed. In this paper we proposed a reprogramming scheme to transmit code image to target nodes, and implement an effective route algorithm in reprogramming scheme. Then we compared our approach with deluge, and the experimentation results confirmed that our scheme achieves substantial improvement in both the lifetime of network and energy consumption in most network environment.
{"title":"Reprogramming for target nodes in WSNs","authors":"Weihong Wang, Shusheng Zheng, Chunping Wang","doi":"10.1109/WOCC.2013.6676405","DOIUrl":"https://doi.org/10.1109/WOCC.2013.6676405","url":null,"abstract":"Reprogramming is essential to wireless sensor networks. Current research in reprogramming is almost based on update function of all nodes in a network, the nodes in target area do special task is seldom discussed. In this paper we proposed a reprogramming scheme to transmit code image to target nodes, and implement an effective route algorithm in reprogramming scheme. Then we compared our approach with deluge, and the experimentation results confirmed that our scheme achieves substantial improvement in both the lifetime of network and energy consumption in most network environment.","PeriodicalId":210863,"journal":{"name":"Wireless and Optical Communications Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125274254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1109/WOCC.2013.6676451
Fei Zhen, T. Pu, Tao Fang, Jinlin Zheng, Yinfang Chen, Dan Sun
A modified nonlinear optical loop mirror (NOLM) by adding tunable bandpass filter (TBPF) is demonstrated for the stealth signal receiving in the optical steganography system. For the promotion of the noise suppressing ability, we investigate the optimal couple ratio, offset spectral and bandwidth of the TBPF in the NOLM. With the parameters we get, the modified NOLM can provide stable thresholding ability and improve the sensitivity of the stealth channel nearly 4dB over the classical NOLM.
{"title":"Noise suppression using modified NOLM for stealth signal receiving in optical steganography system","authors":"Fei Zhen, T. Pu, Tao Fang, Jinlin Zheng, Yinfang Chen, Dan Sun","doi":"10.1109/WOCC.2013.6676451","DOIUrl":"https://doi.org/10.1109/WOCC.2013.6676451","url":null,"abstract":"A modified nonlinear optical loop mirror (NOLM) by adding tunable bandpass filter (TBPF) is demonstrated for the stealth signal receiving in the optical steganography system. For the promotion of the noise suppressing ability, we investigate the optimal couple ratio, offset spectral and bandwidth of the TBPF in the NOLM. With the parameters we get, the modified NOLM can provide stable thresholding ability and improve the sensitivity of the stealth channel nearly 4dB over the classical NOLM.","PeriodicalId":210863,"journal":{"name":"Wireless and Optical Communications Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123253180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We present a radio over fiber system supporting the simultaneous transmission of RFID, WIFI and ZigBee. Though using the inexpensive components, ZigBee can achieve a transmission distance more than 60 km; we also discuss the factors affecting the transmission distance of WIFI and RFID.
{"title":"Simultaneous transmission of RFID, WIFI and ZigBee over fiber","authors":"Zonglei Li, Lian-shan Yan, Hengyun Jiang, Zhiyu Chen, Yinghui Guo","doi":"10.1109/WOCC.2013.6676438","DOIUrl":"https://doi.org/10.1109/WOCC.2013.6676438","url":null,"abstract":"We present a radio over fiber system supporting the simultaneous transmission of RFID, WIFI and ZigBee. Though using the inexpensive components, ZigBee can achieve a transmission distance more than 60 km; we also discuss the factors affecting the transmission distance of WIFI and RFID.","PeriodicalId":210863,"journal":{"name":"Wireless and Optical Communications Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115007664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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