PROBLEM TO BE SOLVED: To solve the problem, wherein it is impossible for an electronic content information provider to provide commercially secure and effective method, for a configurable general-purpose electronic commercial transaction/distribution control system. SOLUTION: In this system, having at least one protected processing environment for safely controlling at least one portion of decoding of digital information, a secure content distribution method comprises a process for encapsulating digital information in one or more digital containers; a process for encrypting at least a portion of digital information; a process for associating at least partially secure control information for managing interactions with encrypted digital information and/or digital container; a process for delivering one or more digital containers to a digital information user; and a process for using a protected processing environment, for safely controlling at least a portion of the decoding of the digital information. COPYRIGHT: (C)2006,JPO&NCIPI

https://apps.dtic.mil/dtic/tr/fulltext/u2/a423264.pdf

Systems and Methods for Secure Transaction Management and Electronic Rights Protection

What will 5G be? What it will not be is an incremental advance on 4G. The previous four generations of cellular technology have each been a major paradigm shift that has broken backward compatibility. Indeed, 5G will need to be a paradigm shift that includes very high carrier frequencies with massive bandwidths, extreme base station and device densities, and unprecedented numbers of antennas. However, unlike the previous four generations, it will also be highly integrative: tying any new 5G air interface and spectrum together with LTE and WiFi to provide universal high-rate coverage and a seamless user experience. To support this, the core network will also have to reach unprecedented levels of flexibility and intelligence, spectrum regulation will need to be rethought and improved, and energy and cost efficiencies will become even more critical considerations. This paper discusses all of these topics, identifying key challenges for future research and preliminary 5G standardization activities, while providing a comprehensive overview of the current literature, and in particular of the papers appearing in this special issue.

What Will 5G Be

Thank you very much for downloading table of integrals series and products. Maybe you have knowledge that, people have look hundreds times for their chosen books like this table of integrals series and products, but end up in harmful downloads. Rather than reading a good book with a cup of coffee in the afternoon, instead they cope with some harmful virus inside their laptop. table of integrals series and products is available in our book collection an online access to it is set as public so you can get it instantly. Our book servers saves in multiple locations, allowing you to get the most less latency time to download any of our books like this one. Merely said, the table of integrals series and products is universally compatible with any devices to read.

Table Of Integrals Series And Products

It is shown that, particularly for terrestrial cellular telephony, the interference-suppression feature of CDMA (code division multiple access) can result in a many-fold increase in capacity over analog and even over competing digital techniques. A single-cell system, such as a hubbed satellite network, is addressed, and the basic expression for capacity is developed. The corresponding expressions for a multiple-cell system are derived. and the distribution on the number of users supportable per cell is determined. It is concluded that properly augmented and power-controlled multiple-cell CDMA promises a quantum increase in current cellular capacity. >

On the capacity of a cellular CDMA system

The vision of next generation 5G wireless communications lies in providing very high data rates (typically of Gbps order), extremely low latency, manifold increase in base station capacity, and significant improvement in users’ perceived quality of service (QoS), compared to current 4G LTE networks. Ever increasing proliferation of smart devices, introduction of new emerging multimedia applications, together with an exponential rise in wireless data (multimedia) demand and usage is already creating a significant burden on existing cellular networks. 5G wireless systems, with improved data rates, capacity, latency, and QoS are expected to be the panacea of most of the current cellular networks’ problems. In this survey, we make an exhaustive review of wireless evolution toward 5G networks. We first discuss the new architectural changes associated with the radio access network (RAN) design, including air interfaces, smart antennas, cloud and heterogeneous RAN. Subsequently, we make an in-depth survey of underlying novel mm-wave physical layer technologies, encompassing new channel model estimation, directional antenna design, beamforming algorithms, and massive MIMO technologies. Next, the details of MAC layer protocols and multiplexing schemes needed to efficiently support this new physical layer are discussed. We also look into the killer applications, considered as the major driving force behind 5G. In order to understand the improved user experience, we provide highlights of new QoS, QoE, and SON features associated with the 5G evolution. For alleviating the increased network energy consumption and operating expenditure, we make a detail review on energy awareness and cost efficiency. As understanding the current status of 5G implementation is important for its eventual commercialization, we also discuss relevant field trials, drive tests, and simulation experiments. Finally, we point out major existing research issues and identify possible future research directions.

Next Generation 5G Wireless Networks: A Comprehensive Survey

An important drawback of employing OFDM-based transmissions over non-linear satellite payloads is its sensitivity to the non-linear response of the on-board Traveling Wave Tube Amplifier (TWTA). Due to the fact that satellite systems are power limited, backing off the TWTA by a significant amount to counteract distortion is not a realistic option. Therefore amplifier linearization techniques need to be employed in order to limit the impact of the non- linear signal distortions. In this paper, we consider Look Up Table (LUT) based pre-distortion in a 'remote linearization' scenario, i.e. where the pre-distortion sub-system for linearizing the onboard TWTA is located at the gateway's modem. In such a configuration, the training sequence at the output of the amplifier is assumed to be contaminated by AWGN. Simulation results, however, show that a noisy feedback channel heavily degrades the performance of a Secant-based algorithm that is typically used for adapting the LUT (3). The main objective of this paper is to investigate, a modified Secant-based adaptation algorithms, which retain very low arithmetic complexity, but also provide robustness against noisy training conditions. Simulation results show that simple modifications provide significant improvement both in the link-level performance and in the reduction of out-of-band radiation. Furthermore, the results also demonstrate that the LUT pre-distorter using the modified algorithm is merely sensitive to the length of the training sequence used in the adaptation process.

Improved adaptation algorithm for LUT-based pre-distorter with noisy training phase in OFDM based satellite system

The simulated results and experimental measurements of the Olympus SS-TDMA link are presented. The degradations of the satellite link were simulated using semi-analytic and Monte Carlo methods. These results are compared with the experimental results. The simulated results show good agreement with the measured results. The paper includes the description of the experimental test set-up, and the operation of the acquisition and synchronization unit (ASU) along with the TDMA reference and traffic terminals used in the experiment. These tests demonstrated the reference-to-remote and remote-to-reference as well as reference station loopback tests using the SS-TDMA payload.



The simulated results of multicarrier operation are given. These results were obtained in order to predict the degradation due to TWTA operating point, carrier fade and adjacent channel interference for the purpose of link budget analysis to achieve the required satellite link performance. The simulated results for the TWTA operating point degradation as well as carrier fade are also compared with the measured satellite link degradations.

Satellite link performance for an SS-TDMA experiment via Olympus

This paper investigates adaptive implementation of the linear minimum mean square error (MMSE) detector in code division multiple access (CDMA). From linear algebra, Cimmino's reflection method is proposed as a possible way of achieving the MMSE solution blindly. Simulation results indicate that the proposed method converges four times faster than the blind least mean squares (LMS) algorithm and has roughly the same convergence performance as the blind recursive least squares (RLS) algorithm. Moreover the proposed algorithm is numerically more stable than the RLS algorithm and also exhibits parallelism for pipelined implementation.

Blind adaptive multiuser detection for code division multiple access using Cimmino's reflection method

Call set-up delay is one of the important factors to assess the quality of service in communication networks. Due to the power limitation problem in satellite personal communication networks (S-PCN), channel fading effects will cause signalling errors. Hence ARQ techniques are required. In this paper we examine the data link layer protocol used on the dedicated control channels (DCCH) in GSM systems. Two alternatives, modified go-back-N (GBN) and selective re-transmission (SRT) ARQ protocols, are proposed for the DCCH at the satellite air-interface. The optimum window size is investigated through the trade-off between the call set-up delay and the signalling capacity requirement.

Call set-up signalling performance in S-PCN

The current DVB-S2 standard specifies the use of constant energy level pilots for receiver synchronization and equalization algorithms. However, these are unsuitable for APSK modulations due to the nonlinear response of the satellite power amplifier. In this paper, we investigate the performance of two low-complexity techniques for nonlinear compensation in DVB-S2 systems, i.e. static predistortion and cluster based sequence equalizer (CBSE). We also propose how multilevel pilot structures, matched to each technique, can be used for carrier recovery. Simulation results are presented in terms of total degradation wherein both techniques are shown to achieve a significant improvement over the conventional system.

Barry G. Evans

Papers

Improved adaptation algorithm for LUT-based pre-distorter with noisy training phase in OFDM based satellite system

Satellite link performance for an SS-TDMA experiment via Olympus

Blind adaptive multiuser detection for code division multiple access using Cimmino's reflection method

Call set-up signalling performance in S-PCN

Carrier recovery and nonlinear compensation for DVB-S2 using multilevel pilots