Pub Date : 2016-09-22DOI: 10.1109/CSNDSP.2016.7574018
Anshul Jaiswal, M. Bhatnagar, V. Jain
In this paper, we investigate the average BER (ABER) of space shift keying (SSK) in a free-space optical communication system under outdoor scenario. To obtain a tight upper bound on ABER of an arbitrary optical SSK (OSSK) system, a novel mathematical expression for the probability density function of difference between two Gamma-Gamma random variables is derived. It is observed that the ABER of OSSK system under strong and moderate atmospheric turbulence regime remains same. Additionally, it is found that the considered system performs poorer by 3 dB under weak turbulence regime as compared to the other two turbulence regimes.
{"title":"BER analysis of optical space shift keying in atmospheric turbulence environment","authors":"Anshul Jaiswal, M. Bhatnagar, V. Jain","doi":"10.1109/CSNDSP.2016.7574018","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7574018","url":null,"abstract":"In this paper, we investigate the average BER (ABER) of space shift keying (SSK) in a free-space optical communication system under outdoor scenario. To obtain a tight upper bound on ABER of an arbitrary optical SSK (OSSK) system, a novel mathematical expression for the probability density function of difference between two Gamma-Gamma random variables is derived. It is observed that the ABER of OSSK system under strong and moderate atmospheric turbulence regime remains same. Additionally, it is found that the considered system performs poorer by 3 dB under weak turbulence regime as compared to the other two turbulence regimes.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122103097","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 : 2016-09-22DOI: 10.1109/CSNDSP.2016.7573976
M. Ijaz, R. Kharel, S. Ekpo, Zabih Ghassemlooy, H. L. Minh, Xuan Tang
This paper experimentally investigates the performance of an FSO communications system by increasing the link length under an indoor laboratory controlled turbulence condition. A plane mirror is used to increase the link length by means of optical beam reflection. The experimental results show that the turbulence strength is highly dependent on the link length. The measured scintillation index (SI) for a link of 6 meters long with no reflection is 0.043, which increases to 0.56 with reflection for a link of 12 meters. Furthermore, the Q-factor is measured as a performance metric for the FSO link with and without the reflected beams for different SI values. The results show that the performance of the FSO link with reflection deteriorates very rapidly with the Q-factor being halved compared at SI of 0.01.
{"title":"Performance evaluation of free space optical communication under the weak turbulence regime","authors":"M. Ijaz, R. Kharel, S. Ekpo, Zabih Ghassemlooy, H. L. Minh, Xuan Tang","doi":"10.1109/CSNDSP.2016.7573976","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573976","url":null,"abstract":"This paper experimentally investigates the performance of an FSO communications system by increasing the link length under an indoor laboratory controlled turbulence condition. A plane mirror is used to increase the link length by means of optical beam reflection. The experimental results show that the turbulence strength is highly dependent on the link length. The measured scintillation index (SI) for a link of 6 meters long with no reflection is 0.043, which increases to 0.56 with reflection for a link of 12 meters. Furthermore, the Q-factor is measured as a performance metric for the FSO link with and without the reflected beams for different SI values. The results show that the performance of the FSO link with reflection deteriorates very rapidly with the Q-factor being halved compared at SI of 0.01.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124671583","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 : 2016-09-22DOI: 10.1109/CSNDSP.2016.7574035
H. Al-Musawi, T. Cseh, J. Bohata, P. Pesek, Wai Pang Ng, Zabih Ghassemlooy, E. Udvary, S. Zvánovec, M. Ijaz
In this paper, we propose a hybrid radio over multi-mode/single-mode fibre and free space optics (RoMMF/SMF-FSO) system to enhance the 4th generation-long term evolution (4G-LTE) signal performance when used in local area access networks. A single mode fibre pigtailed gradient index lens is used to minimise the modal effect of the optical link at different turbulence strengths. The proposed system is characterised in terms of the system transfer function, error vector magnitude (EVM), and optical launch power (OLP). Results demonstrate the robustness of the proposed scheme in terms of increased available passband bandwidth by 2 GHz and improving the transmission shape by reducing the system transfer function ripple by more than 5 dB. Successful transmission of the 4G-LTE signal is achieved over a MMF/SMF-FSO channel with a 1.5 dB power penalty under the higher turbulence level (i.e., Rytov variance of 0.1).
{"title":"Fundamental investigation of extending 4G-LTE signal over MMF/SMF-FSO under controlled turbulence conditions","authors":"H. Al-Musawi, T. Cseh, J. Bohata, P. Pesek, Wai Pang Ng, Zabih Ghassemlooy, E. Udvary, S. Zvánovec, M. Ijaz","doi":"10.1109/CSNDSP.2016.7574035","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7574035","url":null,"abstract":"In this paper, we propose a hybrid radio over multi-mode/single-mode fibre and free space optics (RoMMF/SMF-FSO) system to enhance the 4th generation-long term evolution (4G-LTE) signal performance when used in local area access networks. A single mode fibre pigtailed gradient index lens is used to minimise the modal effect of the optical link at different turbulence strengths. The proposed system is characterised in terms of the system transfer function, error vector magnitude (EVM), and optical launch power (OLP). Results demonstrate the robustness of the proposed scheme in terms of increased available passband bandwidth by 2 GHz and improving the transmission shape by reducing the system transfer function ripple by more than 5 dB. Successful transmission of the 4G-LTE signal is achieved over a MMF/SMF-FSO channel with a 1.5 dB power penalty under the higher turbulence level (i.e., Rytov variance of 0.1).","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128651039","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 : 2016-09-22DOI: 10.1109/CSNDSP.2016.7573943
T. Xu, I. Darwazeh
A new waveform design which simultaneously compresses bandwidth and suppresses out-of-band power leakage is studied in this work considering future 5th generation (5G) requirements. Thus, doubly created interference, coming from less than symbol rate packed sub-carriers and pulse shaping filters, is introduced. Therefore, this work, through using specially designed detectors, deals with the doubly created interference problem. It paves the way to non-orthogonal signal detection and non-orthogonal carrier aggregation (CA) system designs; both of importance to future wireless and wired communication systems.
{"title":"Nyquist-SEFDM: Pulse shaped multicarrier communication with sub-carrier spacing below the symbol rate","authors":"T. Xu, I. Darwazeh","doi":"10.1109/CSNDSP.2016.7573943","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573943","url":null,"abstract":"A new waveform design which simultaneously compresses bandwidth and suppresses out-of-band power leakage is studied in this work considering future 5th generation (5G) requirements. Thus, doubly created interference, coming from less than symbol rate packed sub-carriers and pulse shaping filters, is introduced. Therefore, this work, through using specially designed detectors, deals with the doubly created interference problem. It paves the way to non-orthogonal signal detection and non-orthogonal carrier aggregation (CA) system designs; both of importance to future wireless and wired communication systems.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133527983","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 : 2016-09-21DOI: 10.1109/CSNDSP.2016.7574008
Khaled Maaiuf Rabie, B. Adebisi, M. Rozman
This paper analyzes the performance of a multiple-antenna access point (AP) system with an energy-constrained single-antenna destination node in various Bernoulli-Gaussian impulsive noise environments. More specifically, we deploy the harvest-then-transmit protocol where communication is accomplished over two distinct phases: i) power transfer phase (downlink), ii) information transmission phase (up-link). In this respect, an analytical expression for the ergodic outage probability is derived and validated with Monte Carlo simulations. Results have shown that increasing the source transmit power or/and the number of AP antennas will minimize the ergodic outage probability. It is also presented that careful selection of the energy harvesting time is important to enhance the system performance.
{"title":"Outage probability analysis of WPT systems with multiple-antenna access point","authors":"Khaled Maaiuf Rabie, B. Adebisi, M. Rozman","doi":"10.1109/CSNDSP.2016.7574008","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7574008","url":null,"abstract":"This paper analyzes the performance of a multiple-antenna access point (AP) system with an energy-constrained single-antenna destination node in various Bernoulli-Gaussian impulsive noise environments. More specifically, we deploy the harvest-then-transmit protocol where communication is accomplished over two distinct phases: i) power transfer phase (downlink), ii) information transmission phase (up-link). In this respect, an analytical expression for the ergodic outage probability is derived and validated with Monte Carlo simulations. Results have shown that increasing the source transmit power or/and the number of AP antennas will minimize the ergodic outage probability. It is also presented that careful selection of the energy harvesting time is important to enhance the system performance.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126794949","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 : 2016-07-22DOI: 10.1109/CSNDSP.2016.7573925
Funmilayo B. Ogunkoya, W. Popoola, S. Sinanović
In this paper, we present a study of the combined use of pilot-assisted (PA) electrical PAPR reduction technique and O-OFDM utilising G light emitting diode (LED) groups. In comparison with basic O-OFDM with G = 16, simulation results show that PA technique is capable of reducing G to 3 in order to achieve the same PAPR of approximately 11 dB using P = 5 at complementary cumulative distribution function (CCDF) of 10-3. The PAPR reduction gain using PA technique is achieved with less hardware complexity, but at the expense of increased computational complexity at the transmitter without sacrificing the bit error rate (BER) performance of the system.
{"title":"PAPR reduction in optical OFDM with grouped LEDs","authors":"Funmilayo B. Ogunkoya, W. Popoola, S. Sinanović","doi":"10.1109/CSNDSP.2016.7573925","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573925","url":null,"abstract":"In this paper, we present a study of the combined use of pilot-assisted (PA) electrical PAPR reduction technique and O-OFDM utilising G light emitting diode (LED) groups. In comparison with basic O-OFDM with G = 16, simulation results show that PA technique is capable of reducing G to 3 in order to achieve the same PAPR of approximately 11 dB using P = 5 at complementary cumulative distribution function (CCDF) of 10-3. The PAPR reduction gain using PA technique is achieved with less hardware complexity, but at the expense of increased computational complexity at the transmitter without sacrificing the bit error rate (BER) performance of the system.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124690203","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 : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573921
P. Remlein
The paper considers a wireless transmission system in a multiple-user environment. It involves a combination of non-binary convolutional codes with Continuous-Phase Modulation (CPM) for transmission in an uplink channel using the Frequency Division Multiple Access (FDMA) method. For a more efficient available band utilization, the distances between individual system user carriers are decreased. In order to reduce the bit error rate (BER) a concatenation of CPM with convolutional codes over a ring has been used and a low-complexity iterative algorithm for inter-carrier interference (ICI) cancellation was employed on the receiver side. BER results obtained in computer simulations are presented for the proposed solution.
{"title":"FDMA system with non-binary encoded CPM signals","authors":"P. Remlein","doi":"10.1109/CSNDSP.2016.7573921","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573921","url":null,"abstract":"The paper considers a wireless transmission system in a multiple-user environment. It involves a combination of non-binary convolutional codes with Continuous-Phase Modulation (CPM) for transmission in an uplink channel using the Frequency Division Multiple Access (FDMA) method. For a more efficient available band utilization, the distances between individual system user carriers are decreased. In order to reduce the bit error rate (BER) a concatenation of CPM with convolutional codes over a ring has been used and a low-complexity iterative algorithm for inter-carrier interference (ICI) cancellation was employed on the receiver side. BER results obtained in computer simulations are presented for the proposed solution.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125074568","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 : 2016-07-20DOI: 10.1109/csndsp.2016.7573970
Harriet Nwaizu, R. Saatchi, D. Burke
Accurate measurement and analysis of joints' range of movement (ROM) are important for assessing joint related health conditions and are valuable to clinicians for diagnostic and rehabilitation purposes. As an alternative to using the camera-based methods which are restrictive and expensive, and the electro-goniometers which are not sufficiently effective in some scenarios, researchers are developing the use of microelectromechanical devices such as accelerometers for measuring human joints movement. This paper presents the development of an accelerometer based system to measure movement angle, velocity, acceleration and displacement for the knee.
{"title":"Accelerometer based human joints' range of movement measurement","authors":"Harriet Nwaizu, R. Saatchi, D. Burke","doi":"10.1109/csndsp.2016.7573970","DOIUrl":"https://doi.org/10.1109/csndsp.2016.7573970","url":null,"abstract":"Accurate measurement and analysis of joints' range of movement (ROM) are important for assessing joint related health conditions and are valuable to clinicians for diagnostic and rehabilitation purposes. As an alternative to using the camera-based methods which are restrictive and expensive, and the electro-goniometers which are not sufficiently effective in some scenarios, researchers are developing the use of microelectromechanical devices such as accelerometers for measuring human joints movement. This paper presents the development of an accelerometer based system to measure movement angle, velocity, acceleration and displacement for the knee.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125524583","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 : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573913
Yingjun Zhou, Jiaqi Zhao, Mengjie Zhang, Jianyang Shi, N. Chi
We proposed two-staged linear software equalizer to be applied in high speed visible light communication system. Through the experimental demonstration, we implemented 2.32 Gbit/s VLC transmission based on a phosphorescent white LED with 450MHz bandwidth and 1m transmission distance. The other key technologies are adaptive bit and power loading OFDM, differential amplification PINs and maximum ratio combing algorithm. As far as we know, this is the highest data rate implemented based on a phosphorescent white LED in VLC system.
{"title":"2.32 Gbit/s phosphorescent white LED visible light communication aided by two-staged linear software equalizer","authors":"Yingjun Zhou, Jiaqi Zhao, Mengjie Zhang, Jianyang Shi, N. Chi","doi":"10.1109/CSNDSP.2016.7573913","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573913","url":null,"abstract":"We proposed two-staged linear software equalizer to be applied in high speed visible light communication system. Through the experimental demonstration, we implemented 2.32 Gbit/s VLC transmission based on a phosphorescent white LED with 450MHz bandwidth and 1m transmission distance. The other key technologies are adaptive bit and power loading OFDM, differential amplification PINs and maximum ratio combing algorithm. As far as we know, this is the highest data rate implemented based on a phosphorescent white LED in VLC system.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122921035","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 : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573997
Michael Stein, Dominic Lerbs, M. Hassan, M. Schnee, Immanuel Schweizer, K. Weihe, M. Mühlhäuser
Typically, wireless sensor nodes are battery-powered. The network's lifetime depends on the energy consumption of the sensor nodes. Transmitting messages causes a good portion of this energy consumption. Clustering the sensor nodes may reduce energy consumption through local communication and aggregation. Many clustering algorithms exist, but corresponding simulation results are hardly comparable. This paper conducts an extensive simulation study. We compare five popular clustering algorithms in four different scenarios under strictly uniform conditions. Our results indicate that two criteria for clustering algorithms are particularly important: considering residual energy for cluster head selection, and small communication overhead during cluster formation.
{"title":"Evaluation study for clustering in wireless sensor networks","authors":"Michael Stein, Dominic Lerbs, M. Hassan, M. Schnee, Immanuel Schweizer, K. Weihe, M. Mühlhäuser","doi":"10.1109/CSNDSP.2016.7573997","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573997","url":null,"abstract":"Typically, wireless sensor nodes are battery-powered. The network's lifetime depends on the energy consumption of the sensor nodes. Transmitting messages causes a good portion of this energy consumption. Clustering the sensor nodes may reduce energy consumption through local communication and aggregation. Many clustering algorithms exist, but corresponding simulation results are hardly comparable. This paper conducts an extensive simulation study. We compare five popular clustering algorithms in four different scenarios under strictly uniform conditions. Our results indicate that two criteria for clustering algorithms are particularly important: considering residual energy for cluster head selection, and small communication overhead during cluster formation.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122198842","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：