Switching techniques

This paper investigates the system performance of hybrid time-power switching based relaying (TPSR) energy harvesting enabled in the multisource half-duplex relaying network over the Rayleigh fading channel. The outage probability (OP) of the proposed system model with implementing maximal ratio combining (MRC) and selection combination (SC) technique at the receiver is presented and analyzed.

8p viling 11-10-2024 1 0   Download

In this paper, the performance of a multisource half-duplex relaying network utilizing the time-switching approach is investigated. Particularly, the relay simply relies on the harvested energy from the selected source to perform its operations such as amplifying and forwarding the source signals.

8p viling 11-10-2024 1 0   Download

This paper presents new carrier-based PWM modulations to control this dual topology for optimum operation. In terms of power sources, this cascaded inverter is operated either from isolated dc sources (series power cells) or from a single dc source. Computational simulation and experimental validation are given to verify the proposed techniques.

11p binhminhmuatrenngondoithonggio 09-06-2017 44 2   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)

81p nhq_khtn 07-11-2013 41 5   Download

Transmission: the propagation of a signal, message, or other form of intelligence by any means such as optical fiber, wire, or visual means. Switching: selects the route to the desired destination that the transmitted signal travels by the closing of switches in either the space domain or the time domain or some combinations of the two.

78p vanmanh1008 24-06-2013 75 6   Download

Principles Circuit switching designed for voice Resources dedicated to a particular call Much of the time a data connection is idle Data rate is fixed Both ends must operate at the same rate

51p doanhung_dtvtk10 19-03-2013 61 9   Download

Nitric oxide (NO) is a signaling molecule that affects a myriad of processes in plants. However, the mechanistic details are limited. NO post-transla-tionally modifies proteins by S-nitrosylation of cysteines. The soluble S-nitrosoproteome of a medicinal, crassulacean acid metabolism (CAM) plant,Kalanchoe pinnata, was purified using the biotin switch technique.

11p media19 06-03-2013 47 4   Download

cacls /T /E /G administrator:F d:\users\*.* Cacls will add Full Control for the adminsitrator account all files and subfolders in the Users folder of the D:\ drive. cacls /T /E /R Everyone d:\users Cacls will remove all permissions for the 'Everyone' group in all files and subfolders in the Users folder of the D:\ drive. Be sure to use the /E switch when you are just making modifications to a specific account or group. Without the /E switch, your settings will replace the current security with only what is specified. ...

19p muathu_102 28-01-2013 28 2   Download

Whenever the bandwidth of a medium linking two devices is greater than the bandwidth needs of the devices, the link can be shared. Multiplexing is the set of techniques that allows the simultaneous transmission of multiple signals across a single data link. As data and telecommunications use increases, so does traffic.

58p trada85 22-01-2013 52 5   Download

In this section, we see how we can represent digital data by using digital signals. The conversion involves three techniques: line coding, block coding, and scrambling. Line coding is always needed; block coding and scrambling may or may not be needed.

71p trada85 22-01-2013 80 7   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Wettability Switching Techniques on Superhydrophobic Surfaces

20p sting10 24-02-2012 31 4   Download

Frame Relay is a standardized wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology. Originally designed for transport across Integrated Services Digital Network (ISDN) infrastructure, it may be used today in the context of many other network interfaces. Network providers commonly implement Frame Relay for voice (VoFR) and data as an encapsulation technique, used between local area networks (LANs) over a wide area network (WAN).

0p tengteng16 28-12-2011 92 10   Download

This is a survey paper on Quality-of-Service(QoS) based routing. In this paper, we first introduce the concept of Quality-of-Service and its background. Second, we discuss the concepts of QoS-based routing, its objectives and main issues. After that, several types of QoS based routing algorithms are compared, and the advantages and disadvantages of each type discussed. Then, the relations between QoS based routing and some relevant techniques are studied, including traffic engineering, high level admission control, resource reservation protocols(e.g.

27p trinhhiephoa 30-12-2010 161 24   Download

Frame Relay For datatransfer, X.25-based packet switching has established itself worldwide as a standard and very reliable means. However, X.25 is not a technique suited to the higher quality and speeds of so by modern data communications networks, and it is beginning to be supplanted new techniques, among them ‘frame relay’. In this chapter we start by discussing the shortcomings of X.25-based packet switching in carrying highspeed bitrates and explain how frame relay was designed to overcome these problems....

11p huggoo 20-08-2010 75 6   Download

In this chapter we deal with the mechanics of the switching process, describing the sequence of functionsnecessary to establishconnectionsacross a telecommunicationsnetwork.Weshall cover the principles of circuit switching (as would be used in voice or circuit data networks) as well as the statisticalmultiplexing switching techniques of packet and cell switching. In addition, we describe in outline some of the better known types of switch technology.

31p huggoo 20-08-2010 78 8   Download