{"title":"Millimeter Waves, Millisecond Delays","authors":"S. Panwar","doi":"10.1145/3264492.3264504","DOIUrl":"https://doi.org/10.1145/3264492.3264504","url":null,"abstract":"Two simultaneous revolutionary changes are occurring in networking: the advent of mmWave networks and the advent of applications that require end-to-end delays of the order of a few milliseconds. mmWave is the first physical layer technology that promises huge wireless bandwidth, but with very poor reliability as a result of its vulnerability to blockage (optical fiber offers high reliability and high bandwidth; sub-6Ghz microwave networks offer lower bandwidth but graceful bandwidth degradation that can be mitigated). The emergence of the need for ultra-low delays for haptic communications and control loops in self-driving cars and other sensor-based applications, has radically changed the requirements for layers above the physical layer. These two changes transform standard networking problems and will lead to a new wave of research. Examples will be used to illustrate this paradigm shift.","PeriodicalId":314860,"journal":{"name":"Proceedings of the 2nd ACM Workshop on Millimeter Wave Networks and Sensing Systems","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131650910","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}
Steve Blandino, C. Desset, G. Mangraviti, A. Bourdoux, S. Pollin
{"title":"Phase-Noise Mitigation at 60 GHz with a Novel Hybrid MIMO Architecture","authors":"Steve Blandino, C. Desset, G. Mangraviti, A. Bourdoux, S. Pollin","doi":"10.1145/3264492.3264499","DOIUrl":"https://doi.org/10.1145/3264492.3264499","url":null,"abstract":"Hybrid MIMO architectures provide a simple and effective way to implement millimeter-wave multi-user MIMO, which can deliver extremely high throughput by combining spatial multiplexing and a large bandwidth. Despite both theoretical and practical results being already available, the performance of these systems when including non-idealities is still being analyzed. In this paper we focus on phase noise originating from the multiple PLLs that causes two main problems: symbol rotation and inter-user interference. Although symbol rotation can be mitigated with conventional receiver phase noise tracking schemes, these schemes need to be jointly designed with the transmitted frame, which needs to support multi-user precoding. We analyze different receiver mitigation schemes based either on known training sequences or using blind estimation. Moreover, we propose a novel hybrid base station architecture which feeds back partial information of the status of the transmitter PLLs. Using the PLL status information, baseband compensation can be used to minimize inter-user interference improving the receiver EVM by around 5,dB.","PeriodicalId":314860,"journal":{"name":"Proceedings of the 2nd ACM Workshop on Millimeter Wave Networks and Sensing Systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131252057","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":"Session details: Keynote Address","authors":"Dimitrios Koutsonikolas","doi":"10.1145/3284848","DOIUrl":"https://doi.org/10.1145/3284848","url":null,"abstract":"","PeriodicalId":314860,"journal":{"name":"Proceedings of the 2nd ACM Workshop on Millimeter Wave Networks and Sensing Systems","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132470493","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":"Direction of Arrival and Center Frequency Estimation for Impulse Radio Millimeter Wave Communications","authors":"S. Prasad, T. Panigrahi, Mahbub Hassan","doi":"10.1145/3264492.3264503","DOIUrl":"https://doi.org/10.1145/3264492.3264503","url":null,"abstract":"The 30-300GHz millimeter wave (mmWave) band is currently being pursued to combat the rising capacity demands in 5G, WiFi, and IoT networks. Due to the high frequency, impulse radio (IR) in this band is better suited for positioning than other existing low-frequency bands. Besides precision positioning, the exceptionally wide bandwidth also enables concurrent use of multiple center frequencies in the same application, which opens up additional avenues of information encoding in IR mmWave networks. In this paper, we propose a new mmWave IR framework that can simultaneously detect direction of arrival (DOA) as well as the center frequency of the transmitted pulse. Based on the emerging graphene-based transceivers, we evaluate the performance of the proposed framework in the higher frequency region of mmWave band (100-300GHz). Numerical experiments demonstrate that the proposed framework can detect the DOA of a 0.1 uW mmWave pulse within 1 degree of precision at 20 meters, and classify three different center frequencies with 100% accuracy from a distance of 10 meters. These performances could be further improved by trading off the pulse rate of the system.","PeriodicalId":314860,"journal":{"name":"Proceedings of the 2nd ACM Workshop on Millimeter Wave Networks and Sensing Systems","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128599163","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":"Joint Beam and Channel Tracking for Two-Dimensional Phased Antenna Arrays","authors":"Yu Liu, Jiahui Li, Yin Sun, Shidong Zhou","doi":"10.1145/3264492.3264496","DOIUrl":"https://doi.org/10.1145/3264492.3264496","url":null,"abstract":"Analog beamforming is a low-cost architecture for millimeter-wave (mmWave) mobile communications. However, it has two disadvantages for serving fast mobility users: (i) the mmWave beam in the wireless channel and the beam steered by analog beamforming have small angular spreads which are difficult to align with each other and (ii) the receiver can only observe the mmWave channel in one beam direction and rely on beam-probing algorithms to check other directions. In this paper, we develop a beam probing and tracking algorithm that can efficiently track fast-moving mmWave beams. This algorithm has several salient features: (1) fading channel supportive: it can simultaneously track the channel coefficient and two-dimensional (2D) beam direction in fading channel environments; (2) low probing overhead: it achieves the minimum probing requirement for joint beam and channel tracking; (3) fast tracking speed and high tracking accuracy: its tracking error converges to the minimum Cramer-Rao lower bound (CRLB) in static scenarios in theory and it outperforms several existing tracking algorithms with lower tracking error and faster tracking speed in simulations.","PeriodicalId":314860,"journal":{"name":"Proceedings of the 2nd ACM Workshop on Millimeter Wave Networks and Sensing Systems","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128507601","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}