• No results found

fixed wireless access (FWA) systems

Fade Margins Prediction for Broadband Fixed Wireless Access (BFWA) from Measurements in Tropics

Fade Margins Prediction for Broadband Fixed Wireless Access (BFWA) from Measurements in Tropics

... local access networks [2], the IEEE Computer Society and Microwave Theory and Techniques Society have developed a BFWA standard within their ...P-MP systems operating in the frequency range 10–66 GHz and ...

14

Performance of Random Contention PRMA: A Protocol for Fixed Wireless Access

Performance of Random Contention PRMA: A Protocol for Fixed Wireless Access

... In our new contention scheme, terminal with ready packets to transmit select their slots by running a uniform random generator on available free slots. Collision could occur if more than one terminal contends randomly ...

7

Multiple Access Technologies for Beyond 3G Wireless Cellular Systems

Multiple Access Technologies for Beyond 3G Wireless Cellular Systems

... multiple access (CDMA) schemes based on spread spectrum technology started to come into commercial systems, different from their original environment mainly in military ...not fixed as in TDMA and ...

9

Analysis and optimization of delayed channel access for wireless cyber physical systems

Analysis and optimization of delayed channel access for wireless cyber physical systems

... For wireless routing in sensor networks, this technology enables each node to combine the data coming from dif- ferent sources into a single packet of fixed size according to some aggregation operations ...

13

A Review of Wi-Max Network
                 

A Review of Wi-Max Network  

... kilometre” access, especially when no globally uniform standard is established for broadband wireless ...of fixed broadband wireless access system, and the IEEE ...both fixed and ...

5

Scheduling Heterogeneous Wireless Systems for Efficient Spectrum Access

Scheduling Heterogeneous Wireless Systems for Efficient Spectrum Access

... Figure 18 shows the network performance of the GPRS+WiFi coexistence network in terms of the CBR tra ffi c throughput, the packet end-to-end delay and the packet loss. If we compare the performance of GPRS in both Figures ...

14

Opportunistic Nonorthogonal Packet Scheduling in Fixed Broadband Wireless Access Networks

Opportunistic Nonorthogonal Packet Scheduling in Fixed Broadband Wireless Access Networks

... broadband wireless access (FBWA) [1, 2] is recognized to be a promising alternative technology to existing copper line asymmetric digital subscriber loop (ADSL) [3, 4] and hy- brid fiber-coaxial (HFC) [5] ...

11

A user centric economic driven paradigm for rate allocation in non orthogonal multiple access wireless systems

A user centric economic driven paradigm for rate allocation in non orthogonal multiple access wireless systems

... At the same time, several attempts have been pro- moted to studying the problem of resources’ pricing. In [17, 18], the nature of prices is fixed, with the users be- ing charged a flat rate or different classes of ...

14

II. DOCUMENTED INTERFERENCE IN EUROPE

II. DOCUMENTED INTERFERENCE IN EUROPE

... One of the most amazing studies has done in Hong Kong, in the Office of the Telecommunications Authority (OFTA) [6]. However, they came up with a full assessment of potential interference between broadband ...

6

An Enhanced Service Flow Management Scheme for IEEE 802.16 Broadband Wireless Access Systems

An Enhanced Service Flow Management Scheme for IEEE 802.16 Broadband Wireless Access Systems

... In this work, we consider the latter where the standard defines an air interface for fixed Point-to-Multipoint BWA that is competent of providing various services. The BS schedules the traffic flow, communication ...

5

Efficient Novel Protocol Design for Improving Communication Process and Qos Services in Computer Networks

Efficient Novel Protocol Design for Improving Communication Process and Qos Services in Computer Networks

... in DTR is limited to 3, including for the most part two hops within the ad-hoc transmission mode and something hops within the cellular transmission mode. To beat these weak points, DTR attempts to limit the amount of ...

9

Wireless Application Access with Citrix David S. Grand Systems Engineer Citrix Systems, Inc.

Wireless Application Access with Citrix David S. Grand Systems Engineer Citrix Systems, Inc.

... AT&T Wireless, aimed at boosting revenue all around. AT&T Wireless has launched three subscription-based programs for its mMode mobile content service on its GPRS ...

45

A SURVEY OF MOBILE WIMAX STANDARD

A SURVEY OF MOBILE WIMAX STANDARD

... 712 (thus increased symbol duration) and each sub-stream is modulated and transmitted on a separate orthogonal sub-carrier. The increased symbol duration improves the robustness of OFDM to delay spread. Furthermore, the ...

7

AH WLANs and WPANs towards 4G Wireless.pdf

AH WLANs and WPANs towards 4G Wireless.pdf

... cochannel interference among different users. The maximum values of power depend on each regulating organism. In the United States, the Federal Communications Commission (FCC) has fixed the limit as 1W; in Europe, ...

269

Statistical Packet Assignment Multiple Access for Wireless Asynchronous Transfer Mode Systems

Statistical Packet Assignment Multiple Access for Wireless Asynchronous Transfer Mode Systems

... If this bit is set to one and not all slots have been used in the current assignment cycle, the terminal gets an assignment for a number of slots depending on its average bitrate, which [r] ...

5

Detection of Brain Tumor using GVF and Watershed Segmentation

Detection of Brain Tumor using GVF and Watershed Segmentation

... constrained wireless sensor ...the wireless communication systems that are established in areas where spectrum is allocated to primary users which have exclusive right to access that licensed ...

9

Subcarrier allocation based simultaneous wireless information and power transfer for multiuser OFDM systems

Subcarrier allocation based simultaneous wireless information and power transfer for multiuser OFDM systems

... A subcarrier allocation algorithm based on SWIPT for the OFDM system with multiusers was proposed in this paper. Traditionally, SWIPT is used for single user in OFDM systems more often than not. How- ever, we ...

7

Analysis of node deployment in wireless sensor networks in warehouse environment monitoring systems

Analysis of node deployment in wireless sensor networks in warehouse environment monitoring systems

... According to the optimization object, node deploy- ment can be divided into coverage-based deployment, network connectivity-based deployment, and energy efficiency-based deployment. The performance of the whole WSN ...

15

Wireless Application Access

Wireless Application Access

... today’s wireless environment fall into two distinct categories: private LANs, which provide Ethernet standard access speeds within buildings or larger zones, and public Wide Area Networks (WANs), which ...

16

Development of Optical Interconnections Modules System Architectures and Its Backplane Technology for Terabit Systems

Development of Optical Interconnections Modules System Architectures and Its Backplane Technology for Terabit Systems

... Ahmed Nabih Zaki Rashed, and M. Eid “Characteristics of Multi-Pumped Raman Amplifiers in Dense Wavelength Division Multiplexing (DWDM) Optical Access Networks” IJCSNS International Journal of Computer Science and ...

11

Show all 10000 documents...

Related subjects