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Start date: 2010End date: 2019Type: search.filters.itemtype.Proceedings PaperSubject: search.filters.subject.TelecommunicationsSubject: search.filters.subject.WPANHas files: NoAuthor: search.filters.author.Kocak, Taskin

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    Location-aided Multi-user Beamforming for 60 GHz WPAN Systems
    (IEEE, 2012) Han, Congzheng; Zhu, Xiaoyi; Doufexi, Angela; Kocak, Taskin; University of Bristol; Bahcesehir University
    60 GHz wireless personal area networks (WPANs) offer multi-Gbps throughput, which will provide for a new wave of high data rate applications. This paper exploits the use of location information to improve the performance and enhance range of 60 GHz multi-user beamforming systems. When the location information is available at the transmitter, the scheduler chooses a set of maximum angularly separated users to share wireless resources simultaneously. If additional feedback of signal-to-interference and noise ratio (SINR) is known, a location-assisted scheduler is employed to increase the system overall performance. Both numerical and simulated results show that significant enhancement can be achieved by the proposed schedulers for 60 GHz WPAN systems.
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    A Performance Evaluation of 60 GHz MIMO Systems for IEEE 802.11ad WPANs
    (IEEE, 2011) Zhu, Xiaoyi; Doufexi, Angela; Kocak, Taskin; University of Bristol; Bahcesehir University
    The IEEE 802.11ad task group has published its first draft to cope with the characteristics in 60 GHz millimeter-wave (mmWave) wireless communications. In this paper, three different 2x2 multiple-input multiple-output (MIMO) techniques are considered to enhance the performance of 60 GHz wireless personal networks (WPANs). Packet Error Rate (PER) and link throughput performance are simulated under different channel conditions. In addition, the system throughput over operation range is presented in the paper. Results show that significant enhancements in both coverage and capacity can be achieved by employing space-time block codes (STBC), spatial multiplexing (SM) and three different configurations of beamforming.
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    Throughput and Coverage Performance for IEEE 802.11ad Millimeter-Wave WPANs
    (IEEE, 2011) Zhu, Xiaoyi; Doufexi, Angela; Kocak, Taskin; University of Bristol; Bahcesehir University
    Recently, the development and requirement for ultra-high data rate wireless communication applications has increased dramatically. The 60 GHz millimeter-wave wireless technology is getting increasing attention, and the IEEE 802.11 Task Group AD is making standardization efforts for multi-gigabit data rate communications on both the physical (PHY) and medium access control (MAC) layers. This paper presents a performance evaluation of the PHY and MAC layers of IEEE 802.11ad. Packet error rate and PHY throughput are presented for different modes, and the theoretical MAC throughput is analyzed for different bit error rates, packet sizes and modes. In addition, 2x2 space-time block coding (STBC) is employed for range extension. The cross layer results show our approach enhance the throughput and coverage compared to the case of single antenna.