Short Range Gigabit Wireless Communications Systems: Potentials, Challenges and Techniques

Abstract

t416 Abstract-In this paper, we discuss multi-gigabits per second video kiosk scenario, users can quickly download movies and wireless networks in the 60GHz millimeter wave frequency band. music from kiosk stations to portable devices. Figure II

A unified codebook for fast beam searching in millimeter-wave communications

“…Base-Beam of w2 (8,2) Direction of Arrival (rad) Antenna Gain TABLE I. All weight phase of beam codebook W (4,2) angle(wi,m) w0 (4,2) w1 (4,2) w2 (4,2) w3 (4,2) Here the searching complexity is defined as the accumulated beam training slots. In Fig.10, the searching complexity of SWR and Codebook-based SWR is obtained by averaging 100 independent realizations.…”

“…We can see that the approximation between W (8,4) and W (4) is quite satisfactory. Table I is all phase of codebook W (4,2) , which could be generated by using all antenna elements. Figure 7.…”

“…With the development of wireless multi-media application, the super-high data rate up to Gbps is strongly in demand, especially to support the high-quality video like full HDMI format [1,2]. Traditional wireless communication techniques, such as UWB and IEEE802.11n, with a data rate of hundreds of Mbps, couldn't satisfy such a high data rate.…”

“…With the ability of multi-Gbps data transmission due to an extreme bandwidth up to multi-GHz and the feature of high pass loss as well as millimeter wave length, the 60GHz band communications has drawn a great interest for wireless personal area networks (WPAN) and wireless local area networks (WLAN). The availability of unlicensed huge spectrum with a worldwide overlap further promotes research on 60GHz millimeter communications both from academic and industrial research [2][3][4]. The standardization on 60GHz band was originally launched by the IEEE802.15 WPANs Millimeter-Wave Alternative PHY Task Group 3c (TG3c) and released in 2009 [3].…”

Empirical Performance Evaluation of Enhanced Throughput Schemes of IEEE802.11 Technology in Wireless Area Networks

“…The upper and lower bounds on the transmission capacity in the multiple antenna ad hoc networks with multi-stream transmission and interference cancellation at the receiver was derived by [23] to increase system capacity through beamforming technique. Similar to our work, [24] gave the overview of the newest technologies promised to deliver multi-gigabits throughput: Ieee802.11ac/ ad, they described the channelization PHY design, and MAC modifications and beamforming in the standards. [25] proposed a joint adaptive beamforming algorithm for interference suppression in GNSS( Global Navigation Satellite System) receivers: first the orthogonal projection is used to suppress strong interference by producing nulling in the array pattern, while the maximum post-correlated C/No constrained is used to process the interference-free signal to further enhance the signal quality.…”