L. Lopacinski, M. Brzozowski, J. Nolte, R. Kraemer, Steffen Büchner
{"title":"Parallel RS Error Correction Structures Dedicated for 100 Gbps Wireless Data Link Layer","authors":"L. Lopacinski, M. Brzozowski, J. Nolte, R. Kraemer, Steffen Büchner","doi":"10.1109/ICUWB.2015.7324494","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324494","url":null,"abstract":"One of the most calculation intensive operations for a 100 Gbps wireless packet processing is a forward error correction (FEC). We are using standard field programmable gate arrays (FPGAs) to prepare a data link layer demonstrator. Therefore, we need to find a high-parallelized FEC structure for our device. The difficulty is to design the 100 Gbps FEC engine that can be realized in an FPGA. In one of previous papers, we have proposed a solution based on convolutional coding, but the engine consumed equivalent logic of 23 FPGAs [1]. That solution could not be implemented in nowadays FPGAs. In this paper, we propose parallel Reed-Solomon (RS) coders to reach the 100 Gbps throughput. The main task is to select the best candidates from available correction codes for the targeted 100 Gbps wireless communication and fit it to one or two high-end FPGAs. At the end, we demonstrate a system with two FPGAs, which is achieving continuous user data transfer rate of 97 Gbps and is negotiating the RS parameters according to the channel bit error rate.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130309440","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}
{"title":"Software Defined Radio Subsampling Receiver for Wireless Monitoring and Sensing Medical Applications","authors":"F. Ghannouchi, A. Kwan","doi":"10.1109/ICUWB.2015.7324513","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324513","url":null,"abstract":"In hospitals, telemetry is utilized by physicians to provide accurate diagnosis for their patients. The increase penetration of wireless technology in healthcare environment for powering, monitoring and sensing purposes of implanted or attached devices to human patients' triggered new challenges in designing reconfigurable wireless transceiver intended for healthcare that can operate in multi-frequency mode. To minimize the number of RF receivers needed for these kind of applications, a broadband subsampling receiver is proposed. Recently, this technique has been proposed for software defined radio (SDR) applications to allow multiple and concurrent RF signal digitization directly from the RF stage by using a sampling frequency much lower than the RF frequency. In this paper, band-pass sub-sampling technique widely used in many applications, such as radar, sonar, data acquisition, measurement and instrumentation is reviewed. An efficient subsampling algorithm is proposed to determine the sampling frequency needed such that interferences between the different monitoring and sensing medical signals is mitigated. Measurement results are provided with RF instrumentation equipment and a low speed ADC to validate the proposed architecture for multi- frequency monitoring and sensing applications.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127694938","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}
{"title":"A Linearity Enhancement Method for CMOS Mixers Using Digital Assist","authors":"D. Stewart, C. Saavedra","doi":"10.1109/ICUWB.2015.7324405","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324405","url":null,"abstract":"A technique is presented to improve both the input 1-dB compression point (IP1dB) and the third-order intercept point (IP3) of a mixer using real-time knowledge of the incident RF power to the mixer plus look-up tables (LUTs) that contain measured performance data of mixer under different bias conditions. The concept is applied to an active mixer designed in-house on 130 nm CMOS technology. The mixer has a modified Gilbert-cell topology where the dc bias currents of the RF stage and the LO switching stage are independent of each other. Experimental tests reveal that the IP1dB of the mixer can be increased by +8.7 dB from a baseline value of -12.1 dBm to - 3.3 dBm using the digital assist and its IIP3 can be improved by +5.9 dB from -3.11 dBm to +2.83 dBm with the technique.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131365116","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}
{"title":"Machine-to-Machine Communications in Cognitive Cellular Systems","authors":"W. Ejaz, M. Ibnkahla","doi":"10.1109/ICUWB.2015.7324472","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324472","url":null,"abstract":"Machine-to-machine (M2M) communication systems consist of massive autonomous devices which hold the ability to sense, communicate, and process information ubiquitously. The major challenges posed by M2M devices are spectrum scarcity, spectrum inefficiency, and network overload. Endowing M2M devices with cognitive radio technology can be a promising solution to these challenges. This paper presents an overview of cognitive M2M communication. We present cognitive cellular system architecture for M2M communication and discuss the possible transmission scenarios. In addition, the paper offers a spectrum sensing and resource allocation framework for cognitive M2M communication. Focus is given to lightweight selective compressive sensing and energy efficient resource allocation. Finally, the paper is supported by simulation results showing the benefits offered by cognitive cellular systems for M2M communications.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114982171","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}
{"title":"Mixed Spatial Traffic Modeling of Heterogeneous Cellular Networks","authors":"Chao Li, A. Yongaçoğlu, C. D’amours","doi":"10.1109/ICUWB.2015.7324477","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324477","url":null,"abstract":"An accurate traffic model is a key factor in the research and design of 5G heterogeneous networks. The literature on mixture of non-uniform and uniform traffic models is very limited. The mixed traffic model includes the non-uniform UEs and uniform UEs at the same time, which represents a more realistic traffic distribution. In this paper, we give a mixed traffic model that is based on the available K-tier heterogeneous network, in which each tier has its own transmit power, density, signal to interference ratio (SIR) coverage threshold and path loss exponent. This model also contains an adjustable parameter p which represents the correlation between BS and UE on non- uniform situation and an adjustable parameter r which represents the density ratio of non-uniform UEs to uniform UEs. This traffic model is more realistic because some UEs are spread uniformly and some UEs are clustered around the cell center non-uniformly, especially for the small cells. The expression of the performance metric of coverage probability is derived. The results obtained by analytical expressions and simulations align closely.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115746217","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}
Steven Ferrante, Tao Deng, Ravikumar V. Pragada, Daniel Cohen
{"title":"mm Wave Initial Cell Search Analysis under UE Rotational Motion","authors":"Steven Ferrante, Tao Deng, Ravikumar V. Pragada, Daniel Cohen","doi":"10.1109/ICUWB.2015.7324478","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324478","url":null,"abstract":"Millimeter wave (mmW) communication has emerged as a promising component of the access link for 5G cellular systems. In order to overcome the higher free-space path loss at these frequencies, high gain, and therefore highly directional, antennas are being proposed at both ends of the link. Furthermore, in order to maintain a mobile connection with an acceptable quality of service (QOS), these highly directional antennas also need to be electronically steerable. This required dual-end steerability adds significant system complexity in terms of both initial access and connected mode procedures. Therefore, these various procedures which were originally designed for the current sub 6 GHz systems need to be re-investigated in light of this added complexity. Traditionally, sub 6 GHz mobility studies mainly focused on translational motion; however, with the dual-end highly directional links being proposed for mmW communications, rotational motion also becomes a concern. In this paper, we study the effects these steerable links have on initial network access procedures, especially in the presence of user equipment (UE) rotational motion.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123267328","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}
Feng Lu, S. Imata, N. Kamiya, Nobuo Suzuki, Kazunori Takeuchi
{"title":"Propagation Characteristics and Deployment of Millimeter Wave Communication in Bullet Train Car","authors":"Feng Lu, S. Imata, N. Kamiya, Nobuo Suzuki, Kazunori Takeuchi","doi":"10.1109/ICUWB.2015.7324503","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324503","url":null,"abstract":"This paper deals with propagation characteristics of 60GHz band millimeter wave communication systems and technical issues on how to deploy millimeter wave enabled access points (APs) in passenger car of bullet trains. Propagation characteristics of wireless LAN system in 2.4GHz and 5GHz band deployed in car of commuter trains and in passenger car of high speed trains have been investigated. In this paper we simulated the propagation characteristics of 60GHz band by a ray tracing method and calculated how many millimeter wave access points are necessary to meet the desired throughput at all the seats in the passenger car. In order to make clear the practical issues for millimeter wave AP deployment, we also investigated how much do the following parameters such as the height level of STA, TX power level, seat occupancy rate, co-channel interference and dielectric parameter or permittivity of in car materials, affect the propagation characteristics millimeter wave communications.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123448451","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}
{"title":"Cost Efficiency Adaptive Antenna System Based on Active Frequency Selective Surface","authors":"Fengchang Yu, L. Zhang, Q. Liu, L. Ye, Yanhui Liu","doi":"10.1109/ICUWB.2015.7324432","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324432","url":null,"abstract":"A patent-pending 16 channel adaptive antenna based on active frequency selective surface is proposed. A Zigbee system built with this antenna is realized and tested in the real world. And serial experiments are taken. The results show that this antenna has a better performance than a pair of dipoles. At some places, this antenna can offer a stable link when the dipoles based system loses many packages. And for some places, this antenna can offer a 20 dB better received signal strength.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"15 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127660221","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}
{"title":"A 280 ps - 7.5 ns UWB Pulse Generator with Amplitude Compensation in 40 nm CMOS","authors":"B. Faes, P. Reynaert, P. Leroux","doi":"10.1109/ICUWB.2015.7324393","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324393","url":null,"abstract":"A novel highly flexible triangular pulse generator has been designed in 40 nm CMOS technology. The pulse width is adjustable between 280 ps an 7.5 ns. The generator has a maximum power consumption of 0.54 pJ/pulse from a 0.9V power supply. The pulse amplitude variation is compensated and is limited to 2.7 dB over the entire pulse width range. The triangular pulse is upconverted with a frequency mixer to generate a highly flexible ultra-wideband (UWB) pulse. To minimize the unwanted voltage controlled oscillator (VCO) leakage signal on the UWB pulse, the leakage of the frequency mixer is compensated by feedforward using a controlled mixer replica.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131343968","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}
{"title":"Accurate Sensors Localization in Underground Mines or Tunnels","authors":"Ahmad El Assaf, S. Zaidi, S. Affes, N. Kandil","doi":"10.1109/ICUWB.2015.7324418","DOIUrl":"https://doi.org/10.1109/ICUWB.2015.7324418","url":null,"abstract":"In this paper, a novel localization algorithm tailored for underground mines is proposed. Using the proposed algorithm, each regular (i.e position-unaware) node estimates its distances to the anchor (i.e., position-aware) nodes exploiting only its locally available information. Furthermore, a new hop count adjustment scheme, which complies with the labyrinthic nature of underground mines, is developed to ensure an accurate distance estimation, thereby making our localization algorithm more precise. Simulations show that our proposed algorithm, consistently outperforms in underground mines the best representative localization algorithms currently available in the literature in terms of accuracy, even with the presence of radiation irregularities.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"291 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132564404","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}