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As voting plays an important role in democratic society, both the privacy and verifiability of voting are particularly important in computer-supported voting system. In this paper, we propose a secret voting scheme that based on multi-input functional encryption. Compared with other traditional voting systems, our scheme not only can keep anonymity and receipt freeness while voting proceedings, but...
Traffic from mobile wireless networks has been growing at a fast pace in recent years and is expected to surpass wired traffic very soon. Service providers face significant challenges at such scales including providing seamless mobility, efficient data delivery, security, and provisioning capacity at the wireless edge. In the Mobility First project, we have been exploring clean slate enhancements...
This paper analyses an incremental relaying uplink model with partial relay selection. It describes the transmission between the base station (BS) and the mobile station (MS). The BS is a multi-antenna destination. The performance measured of the system are derived which include ergodic capacity and outage probability over Rayleigh fading channel. Combined with the other papers, this paper mainly...
For mobile multi-hop wireless network, IEEE 802.16j/MR network can not only supply large area wireless deployment, but also provide high quality network service to mobile users. In this paper, we will be focusing on QoS supporting for mobile users in the IEEE 802.16-MR network. The probability of a mobile user who visits a RS is known beforehand. With the same visiting probability of each RS and the...
The ZigBee standard is one of the most popular protocols which aimed at wireless sensor network applications. It relies on IEEE 802.15.4 to form a complete protocol stack. In most existing implementation, a central processor is used to execute embedded operating system and another microprocessor is required to carry out the IEEE 802.15.4 protocol. In this paper, we present a design and implementation...
In this investigation, we propose and investigate the standard WiMAX access in high speed railway (HSR) using radio over fiber (RoF) link. We also discuss the theory of mobile WiMAX at a target speed of 300 km/hr in simulation. We also analyze the effect of the Doppler frequency shift over HSR. The effective transmission fiber length in the WiMAX-RoF system was limited due to the time-division-duplex...
Various instrumentation buses have different characteristics, performances and advantages. With the development of electronics, communication and information techniques, unit under test (UUT) is more complicated today and test requirement is difficult to achieve just using single test bus. It's absolutely necessary to create hybrid test and measurement (T&M) system which integrates multiple platforms...
Broadcatching is a promising mechanism to improve the experience of BitTorrent users by automatically downloading files advertised through RSS feeds. However, though widely used, the mechanism itself has not been well studied. In this paper, we conducted extensive experiments on PlanetLab to evaluate the performance of Broadcatching under different typical scenarios. The results demonstrated the effectiveness...
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