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Low Overhead Broadcast Encryption from Multilinear Maps
Multilinear Maps Broadcast Encryption
2015/8/5
We use multilinear maps to provide a solution to the long-standing problem of public-key
broadcast encryption where all parameters in the system are small. In our constructions,
ciphertext overhead,...
Transmission of 96×100Gb/s with 23% Super-FEC Overhead over 11,680km, using Optical Spectral Engineering
Transmission Super-FEC Overhead Optical Spectral Engineering
2015/5/20
We transmit 96 PDM-QPSK channels at 100Gb/s over 11,680km, matching the best capacity × distance product reported, but with C-band-only EDFAs. 2.7b/s/Hz spectral density is obtained, despite 23% super...
Significant Overhead Reduction of Multi-band Tb/s Coherent Optical OFDM Systems
Multi-band Tb/s Coherent Optical OFDM Systems Overhead Reduction
2015/5/15
The timing and optical laser phase of individual bands in multi-band OFDM are correlated. We significantly reduce the OFDM overhead through using FFT window synchronization for channel estimation and ...
Fully DC-Coupled 10Gb/s Burst-Mode PON Prototypes and Upstream Experiments with 58ns Overhead
Fully DC-Coupled Burst-Mode PON Prototypes Upstream Experiments Overhead
2015/6/11
This paper presents a chain of four fully DC-coupled 10Gb/s burst-mode prototypes operating with 58ns overhead for the first time. 10Gb/s upstream burst-mode experiments are performed without a time-c...
提高广东架空送电线路输送容量研究（Study on Raising Transmission Capacity of Overhead Transmission Line in Guangdong Power Grid ）
架空线路 输送容量 环境温度 跨越距离 正常允许电流 特殊允许电流
2010/8/17
阐述架空导线载流控制条件，分析广东架空送电线路实际运行条件和广东地区多年实测气象参数，制定广东架空线路正常运行允许电流I0，通过风险分析证实现有线路正常载流能力可安全地提高7%以上。在正常允许电流I0的基础上，挖掘运行线路跨越距离裕度，提出架空线路在检修、应急两种特殊运行条件下的允许电流I1、I2及其确定原则，通过对实际线路开展测量和验算，确认电网特殊情况下存在安全增容的可能性，特定线路可以多输送...
The efficiency of adaptive modulation and coding (AMC) procedure in high speed Downlink packet access (HSDPA) depends on the frequency of the channel quality information (CQI) reports transmitted by t...
A Low-Overhead Cooperative Retransmission Scheme for IR-UWB Networks
Low-Overhead Cooperative Retransmission Scheme IR-UWB Networks
2009/9/4
The UWB unique properties such as fine ranging and immunity to small scale fading are utilized in order to exploit the multiuser diversity in UWB networks. The optimal cooperation strategies in the ab...
Reducing Cyclic Prefix Overhead in Optical OFDM Systems
Reducing Cyclic Prefix Overhead Optical OFDM Systems
2015/7/14
Simulations show that by pre-compensating for dispersion, using bands transmitted with timing offsets and a single-band receiver, the cyclic prefix to be reduced in optical OFDM systems without compro...
Investigation of the dynamics of an overhead crane lifting process in a vertical plane
overhead crane dynamics lifting process asynchronous motor
2010/11/2
The paper analyses the dynamic behaviour of supporting structure of an overhead crane during the operation of a hoisting mechanism. The crane is expected to operate with a hook and to carry 50 kN of w...