Multiple access techniques

Xem 1-20 trên 28 kết quả Multiple access techniques
  • Mobile edge computing is an emerging trend of cloud computing that enables terminal users, which have limited computing ability, to offload their tasks to the edge servers. In this paper, we study the performance of mobile edge computing system using non-orthogonal multiple access (NOMA) and radio frequency energy harvesting techniques.

    pdf9p viputrajaya2711 22-06-2020 6 0   Download

  • Time Division Multiple Access (TDMA) is the most prevalent wireless access system to date GSM, ANSI-136, EDGE, DECT, PHS, Tetra. Direct Sequence Code Division Multiple Access (DS-CDMA) became commercial only in the mid 90’s IS-95 (A,B, HDR,1x,3x,...), cdma-2000 (3GPP2), W-CDMA (3GPP)

    ppt81p nhq_khtn 07-11-2013 34 3   Download

  • Wireless Communications Principles and Practice - Chapter 1: Introduction to Wireless Communication Systems includes Components of score and References, Wireless Networking, Wireless Systems and Standards, Modulation Techniques for Mobile Radio.

    pdf66p maiyeumaiyeu25 16-12-2016 45 4   Download

  • Four laws, two each from the natural sciences and the social sciences, have formed the basis for the development of digital wireless communication networks. This essay describes their interaction, as well as their logical support for spread - spectrum multiple - access techniques.

    pdf426p phongthinh 04-08-2009 342 197   Download

  • Bài giảng "Truyền thông không dây - Giới thiệu" do Đặng Lê Khoa biên soạn trình bày các nội dung về: Giới thiệu hệ thống DCS (Digital Communication system); kênh truyền (Channel); định dạng và điều chế dải gốc (Formatting & Baseband modulation); bộ cân bằng, phân tập, và đan xen (Equalization, Diversity & Interleaving); mã hóa kênh (Channel coding); điều chế đa sóng mang (Multicarrier modulation); các kỹ thuật đa truy cập (Multiple Access Techniques); giới thiệu một số chuẩn trong truyền thông không dây.

    ppt7p nhq_khtn 12-03-2011 276 55   Download

  • You will understand the physical meaning behind the mathematics of wireless signals and learn the intricacies and tradeoffs in signal selection and design.

    pdf903p dangkhoa1612 18-05-2013 132 46   Download

  • Tham khảo sách 'resource management in satellite networks', kỹ thuật - công nghệ, kĩ thuật viễn thông phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf348p 123859674 30-06-2012 83 18   Download

  • Multiple-Access Techniques Three commonly used techniques for accommodating multiple users in wireless communications are frequency division multiple access (FDMA), time division multiple access (TDMA), and code division multiple access (CDMA). Frequency division multiple access and TDMA are old technologies and have been used for quite a while. Code division multiple access is the emerging technology for many new cellular phone systems. This chapter will brie¯y discuss these techniques.

    pdf10p vaseline 30-08-2010 78 17   Download

  • The second edition of this accessible book provides readers with an introductory treatment of communication theory as applied to the transmission of information-bearing signals. While it covers analog communications, the emphasis is placed on digital technology. It begins by presenting the functional blocks that constitute the transmitter and receiver of a communication system. Readers will next learn about electrical noise and then progress to multiplexing and multiple access techniques.

    pdf537p hoconganh_9x 22-09-2014 57 12   Download

  • Enable many mobile users to share simultaneously radio spectrum. Provide for the sharing of channel capacity between a number of transmitters at different locations. Aim to share a channel between two or more signals in such way that each signal can be received without interference from another.

    ppt60p nhq_khtn 12-03-2011 49 7   Download

  • SAP GRC Access Control SAP is the onliy vendor with a “Gartner recommends” rating in all technique categories (Static analysis, provisioning support, integrated provisioning workflow, transaction monitoring and emergency access) “…offers one of the strongest product sets in our analysis, comperhensively addressing all SoD issues across multiple SAP instances”

    pdf146p bongbong_hong 17-12-2012 72 5   Download

  • This report is the final product of a Committee on Earth Studies (CES) examination of technical and programmatic issues related to the integration of research and operational Earth observation satellite systems in the support of climate research (see Appendix A for the statement of task). In a brief letter report (“On Climate Change Research Measurements from NPOESS,” May 27, 1998), the committee provided an overview of the many scientific, technical, and programmatic issues associated with integrating the measurement responsibilities of research agencies with those of operational agencies.

    pdf99p mnemosyne75 02-02-2013 38 2   Download

  • The most basic data structure in MATLAB® is the matrix: a two-dimensional, rectangularly shaped data structure capable of storing multiple elements of data in an easily accessible format. These data elements can be numbers, characters, logical states of true or false, or even other MATLAB structure types.

    pdf865p ngovanquang 06-03-2010 207 117   Download

  • The Data-over-Cable Service Interface Specification (DOCSIS)is an international standard developed by CableLabs, a non-profit research and development consortium for cable-related technologies. • DOCSIS specifies the OSI Layer 1 and Layer 2 requirements: Physical layer-For data signals that the cable operator can use, DOCSIS specifies the channel widths (bandwidths of each channel) as 200 kHz, 400 kHz, 800 kHz, 1.6 MHz, 3.2 MHz, and 6.4 MHz. DOCSIS also specifies modulation techniques (the way to use the RF signal to convey digital data).

    pdf47p mrdvad11 12-03-2013 119 52   Download

  • This chapter deals with applications of independent component analysis (ICA) and blind source separation (BSS) methods to telecommunications. In the following, we concentrate on code division multiple access (CDMA) techniques, because this specific branch of telecommunications provides several possibilities for applying ICA and BSS in a meaningful way.

    pdf24p duongph05 09-06-2010 98 13   Download

  • SYSTEM ANALYSIS FUNDAMENTALS FUNDAMENTALS OF SYSTEM ANALYSIS Third generation systems focus on providing a universal platform to afford multifarious communications options at all levels, i.e. the radio as well as the core network sides. This implies the application of optimum techniques in multiple access and interworking protocols for the physical and upper layers, respectively.

    pdf28p doroxon 12-08-2010 80 10   Download

  • MD PRMA WITH LOAD-BASED ACCESS CONTROL Chapter 5 provided descriptions of channel and traffic models used for investigations on the MD PRMA protocol, which was defined in detail in Chapter 6. Starting with this chapter, and continuing in Chapters 8 and 9, the outcomes of our research efforts on MD PRMA will be discussed. In this chapter, the focus is on load-based access control (for MD PRMA), a technique adopted to protect reservation-mode users from multiple access interference generated by contending users. Only voice traffic is considered...

    pdf32p huggoo 20-08-2010 64 8   Download

  • The web in recent years has experienced an explosion in the number of devices users employ to access services. A single user may access a certain service using multiple devices. Most services allow clients to access the service through a broker. The client is then forced to interact with the service via this broker throughout the duration that it is using the service. If the broker fails, the client is denied servicing till such time that the failed broker recovers.

    pdf50p nhacchovina 22-03-2013 45 7   Download

  • Packet Scheduling in Networks The networks under consideration in this chapter have a point-to-point interconnection structure; they are also called multi-hop networks and they use packet-switching techniques. In this case, guaranteeing time constraints is more complicated than for multiple access LANs, seen in the previous chapter, because we have to consider message delivery time constraints across multiple stages (or hops) in the network.

    pdf47p vaseline 30-08-2010 60 6   Download

  • Joint Scheduling of Tasks and Messages in Distributed Systems This chapter and the next one discuss mechanisms to support real-time communications between remote tasks. This chapter deals with some techniques used in multiple access local area networks and Chapter 7 deals with packet scheduling when the communications are supported by packet-switching networks such as ATM or IPbased networks.

    pdf26p vaseline 30-08-2010 71 5   Download



p_strKeyword=Multiple access techniques

nocache searchPhinxDoc


Đồng bộ tài khoản