Social and Behavioral Sciences Commons^™

Slides: Multi-Dimensional Energy Poverty Index (Mepi), Morgan Bazilian

2012 Energy Justice Conference and Technology Exposition (September 17-18)

Presenter: Dr. Morgan Bazilian, Deputy Director, Joint Institute for Strategic Energy Analysis (JISEA), National Renewable Energy Laboratory (NREL)

8 slides

Session Communication And Integration, Guoxin Su, Mingsheng Ying, Chenqui Zhang

Faculty of Engineering and Information Sciences - Papers: Part B

No abstract provided.

Order-4 Orthogonal Cooperative Communication In Space-Time-Frequency Coded Mb-Ofdm Uwb, Zixuan Lin, Le C. Tran, Farzad Safaei

Faculty of Engineering and Information Sciences - Papers: Part A

The combination of cooperative communication and Space-Time-Frequency-Codes (STFCs) has been recently proposed in the literature for Multiband OFDM Ultra-Wideband (MB-OFDM UWB) to improve the bit error performance, system capacity, data rate and wireless communications range. This paper proposes a cooperative communication design using Order-4 Orthogonal STFCs in MB-OFDM UWB systems, which is referred to as Order-4 Orthogonal Cooperative Communication Scheme (4-OCCS). It will be shown that 4-OCCS improves significantly the diversity and error performance of the MB-OFDM UWB system, compared to the conventional MB-OFDM UWB (without STFCs) as well as our Order-2 Orthogonal Cooperative Communication Scheme using Alamouti STFCs (2-OCCS) …

Robust Distributed Privacy-Preserving Secure Aggregation In Vehicular Communication, Bo Qin, Qianhong Wu, Josep Domingo-Ferrer, Willy Susilo

Faculty of Engineering and Information Sciences - Papers: Part A

Vehicular ad hoc networks (VANETs), formed by computers embedded in vehicles and the traffic infrastructure, are expected to develop in the near future to improve traffic safety and efficiency. To this end, VANETs should be designed to be resistant against various abuses and attacks. In this paper, we first review the existing proposals to provide security, privacy, and data aggregation in vehicle-to-vehicle communication. We then address the fundamental issue of achieving these conflicting properties in a unified solution, having observed that separate efforts cannot fulfill the VANET design objectives. A set of new mechanisms are suggested for efficiently managing identities …

Key-Based Scrambling For Secure Image Communication, Prashan Premaratne, Malin Premaratne

Faculty of Engineering and Information Sciences - Papers: Part A

Secure image communication is becoming increasingly important due to theft and manipulation of its content. Law enforcement agents may find it increasingly difficult to stay afloat above the ill intentions of hackers. We have been able to develop an image scrambling algorithm that is very simple to implement but almost impossible to breach with a probability less than 5x10− 300. This is possible due to the fact that a user may purchase or acquire rights for an intended image by specifying a 'key' that can form a sequence of numbers 10 to 100 in length. The content provider uses this …

Order-4 Quasi-Orthogonal Cooperative Communication In Stfc Mb-Ofdm Uwb, Zixuan Lin, Le Chung Tran, Farzad Safaei, Tadeusz A. Wysocki

Faculty of Engineering and Information Sciences - Papers: Part A

Recently, cooperative communication and Space-Time-Frequency-Codes (STFCs) have been introduced into the Multiband OFDM Ultra-Wideband (MB-OFDM UWB) to improve the reliability, data rate and system capacity. This paper proposes a cooperative communication scheme for a four source node MB-OFDM UWB system using Quasi-Orthogonal STFCs, which is referred to as order-4 Quasi-Orthogonal Cooperative Communication Scheme (4-QOCCS). Simulation results show that the proposed 4-QOCCS provides significantly better error performance over the conventional MB-OFDM UWB and our order-2 Orthogonal Cooperative Communication Scheme (2-OCCS) using the Alamouti STFCs, and even better than the order-4 Orthogonal Cooperative Communication Scheme (4-OCCS), which we have been recently proposed, …