• No results found

Relay networks (telecommunications)

Joint source and relay optimization for parallel MIMO relay networks

Joint source and relay optimization for parallel MIMO relay networks

... the relay amplifying matrices for multiple-input multiple-output (MIMO) relay communication systems with parallel relay ...optimal relay amplifying matrices have a beamforming ...and ...

7

Cognitive Relay Networks: A Comprehensive Survey

Cognitive Relay Networks: A Comprehensive Survey

... different networks and applications ranging from wireless to public safety, smart grid, medical, relay and cellular applications to increase the throughput and spectrum efficiency of ...cognitive relay ...

8

Joint source and relay optimization for interference MIMO relay networks

Joint source and relay optimization for interference MIMO relay networks

... Two-way relay systems have hence been proposed to overcome the loss of spectral efficiency in such one-way relay methods ...two-way relay channel can be accomplished in two phases: the multiple ...

14

Optimal Relay Design for MIMO Relay Networks Using Gradient Projection

Optimal Relay Design for MIMO Relay Networks Using Gradient Projection

... optimal relay amplifying matrix design for two-hop MIMO relay networks with a single relay ...MIMO relay networks by making use of local ...optimal relay amplifying ...

5

Secure Communication for Two-way Relay Networks with Imperfect CSI

Secure Communication for Two-way Relay Networks with Imperfect CSI

... low-complex networks which cannot afford multiple antennas. Cooperative relay networks with amplify-and-forward (AF) [12–15] or decode-and-forward (DF) [16,17] protocols are mostly ...one-way ...

16

Secure Communications for Two Way Relay Networks Via Relay Chatting

Secure Communications for Two Way Relay Networks Via Relay Chatting

... a relay and a jamming node to enhance the ...joint relay and jammer selec- tion were investigated for two-way cooperative networks in ...three relay nodes to enhance security, where the first ...

6

A Review on Multiple Relay Selection Scheme for Cooperative Relay Networks

A Review on Multiple Relay Selection Scheme for Cooperative Relay Networks

... cellular networks and wireless sensor networks where size restrictions preclude the use of multiple antennas, cooperative communications was ...cooperative networks, the single-antenna nodes that ...

5

Outage performance of relay assisted transmissions in cognitive full duplex relay networks

Outage performance of relay assisted transmissions in cognitive full duplex relay networks

... half-duplex relay systems, which encounter loss of resource ...full-duplex relay systems come into ...full-duplex relay network are analyzed, under the adverse effect of self-interference caused by ...

11

Joint Relay and Jammer Selection for Secure on Relay Networks

Joint Relay and Jammer Selection for Secure on Relay Networks

... network operational frequencies, and in proximity to the targeted receivers [2]. Link error and small packet dropping is two sources for packet losses in multichip wireless ad hoc network. While observing a sequence of ...

7

Maximum Ratio Combining Precoding for Multi Antenna Relay Systems

Maximum Ratio Combining Precoding for Multi Antenna Relay Systems

... multi-antenna relay networks in providing higher capacity and performance compared to that of systems with single-antenna terminals is still ...multi-antenna relay systems are discussed and ...AF ...

7

A hybrid half duplex/full duplex transmission scheme in relay aided cellular networks

A hybrid half duplex/full duplex transmission scheme in relay aided cellular networks

... wireless networks has been rapidly in- creasing, and energy-efficient design of wireless net- works has become the focus of both academia and industry [17, ...of relay systems mainly focused on the HD mode, ...

10

ENHANCING SECURITY IN TWO-WAY RELAY NETWORK BY USING COOPERATION JAMMING AND RELAY SELECTION APPROACH

ENHANCING SECURITY IN TWO-WAY RELAY NETWORK BY USING COOPERATION JAMMING AND RELAY SELECTION APPROACH

... Opportunistic relay selection for one-way relay networks with secrecy constraints was addressed in [9], where the proposed scheme involved the joint selection of a relay and a jamming node to ...

7

Cooperative Spectrum-Sharing with Two-Way AF Relaying in the Presence of Direct Communications

Cooperative Spectrum-Sharing with Two-Way AF Relaying in the Presence of Direct Communications

... with relay networks [2, 3], where the latter is know as an efficient approach for combating the effect of fading channels and expanding the communication range through the assistance of third party named ...

9

Barriers for telecommunication accessibility and needs assessment of video relay services (VRS): Utilization of VRS for the deaf community

Barriers for telecommunication accessibility and needs assessment of video relay services (VRS): Utilization of VRS for the deaf community

... Des Power, Mary R. Power, and Louise Horstmanshof (2007) also used a similar framework. They conducted a study regarding Australian Deaf people communicating via electronic media such as text messages (SMS), TTY, ...

101

On Cooperative Relay in Cognitive Radio Networks

On Cooperative Relay in Cognitive Radio Networks

... the relay transmit power is ...the relay transmit power is low, since both AF and DF are limited by the relay-to-receiver link in this low power ...the relay-to-receiver link is improved with ...

10

Relay Node Placement and Trajectory Computation of Mobile Data Collectors in Wireless Sensor Networks

Relay Node Placement and Trajectory Computation of Mobile Data Collectors in Wireless Sensor Networks

... Sensor nodes are underlying building blocks of sensor networks. A typical sensor node, as shown in Figure 2.1, which is simplified from [24], is usually equipped with a sensing unit for measuring the intentional ...

73

Power allocation and relay selection for energy efficient cooperation in wireless sensor networks with energy harvesting

Power allocation and relay selection for energy efficient cooperation in wireless sensor networks with energy harvesting

... sensor networks, they develop a distributed iteration algorithm of power allocation, power splitting, and relay selection to maximize the system energy efficiency, and they find that power splitting ratio ...

11

STUDY AND ANALYSIS OF WIFI TECHNOLOGY

STUDY AND ANALYSIS OF WIFI TECHNOLOGY

... 1397 | P a g e  WiMAX, which is an IP-based wireless broadband technology, can be integrated into both wide-area third-generation (3G) mobile and wireless and wireline networks allowing it to become part of a ...

10

Progress report on the implementation of a Community telecommunications policy. Communication from the Commission. COM (88) 240 final/1, 31 May 1988

Progress report on the implementation of a Community telecommunications policy. Communication from the Commission. COM (88) 240 final/1, 31 May 1988

... Work on the coordinated development of telecommunications networks and services in the Community carried out by the Commission in conjunction with the Senior Officials Group on Telecommu[r] ...

19

Television without Frontiers. Green Paper on the Establishment of the Common Market for Broadcasting, especially by Satellite and Cable. Cover Page and Table of Contents COM (84) 300 final/Part 1, 14 June 1984.

Television without Frontiers. Green Paper on the Establishment of the Common Market for Broadcasting, especially by Satellite and Cable. Cover Page and Table of Contents COM (84) 300 final/Part 1, 14 June 1984.

... Lon9~distan~e ~abLe or telecommunications sateLlite and relay through cable as a singLe service Consent to the cable relay of copyright domestic programmes abroad as a further... Restric[r] ...

12

Show all 10000 documents...

Related subjects