Time-division optical communications in multiprocessor arrays

1993 ◽  
Vol 42 (5) ◽  
pp. 577-590 ◽  
Author(s):  
C. Qiao ◽  
R.G. Melhem
Keyword(s):  
Optical Communications ◽  
Time Division

A Symmetric Processor Array with Synchronous Optical Buses and Switches

1998 ◽  
Vol 08 (03) ◽  
pp. 283-295 ◽  
Author(s):  
Yueming Li ◽  
Jianhui Tao ◽  
S. Q. Zheng
Keyword(s):  
Response Time ◽  
Optical Communication ◽  
Optical Communications ◽  
Utilization Rate ◽  
Processor Array ◽  
Array Architecture ◽  
All Optical ◽  
Optical Buses ◽  
Time Division ◽  
Communication Paths

A modified processor array with synchronous optical buses and switches for time division multiplexed optical communications is proposed. Compared with a previously proposed processor array architecture, our architecture features better flexibility, improved packet slot utilization rate and reduced average packet response time, while preserving all-optical communication paths.

Interference mitigation in point to point wireless sensor networks using LSP protocol and time division multiplexing approach

2020 ◽  
Vol 39 (4) ◽  
pp. 5449-5458
Author(s):  
A. Arokiaraj Jovith ◽  
S.V. Kasmir Raja ◽  
A. Razia Sulthana
Keyword(s):  
Energy Consumption ◽  
Large Scale ◽  
Control Parameter ◽  
Interference Mitigation ◽  
Wireless Sensor ◽  
Point To Point ◽  
A Minor ◽  
Two Stages ◽  
Time Division ◽  
And Control

Interference in Wireless Sensor Network (WSN) predominantly affects the performance of the WSN. Energy consumption in WSN is one of the greatest concerns in the current generation. This work presents an approach for interference measurement and interference mitigation in point to point network. The nodes are distributed in the network and interference is measured by grouping the nodes in the region of a specific diameter. Hence this approach is scalable and isextended to large scale WSN. Interference is measured in two stages. In the first stage, interference is overcome by allocating time slots to the node stations in Time Division Multiple Access (TDMA) fashion. The node area is split into larger regions and smaller regions. The time slots are allocated to smaller regions in TDMA fashion. A TDMA based time slot allocation algorithm is proposed in this paper to enable reuse of timeslots with minimal interference between smaller regions. In the second stage, the network density and control parameter is introduced to reduce interference in a minor level within smaller node regions. The algorithm issimulated and the system is tested with varying control parameter. The node-level interference and the energy dissipation at nodes are captured by varying the node density of the network. The results indicate that the proposed approach measures the interference and mitigates with minimal energy consumption at nodes and with less overhead transmission.

A Novel Turbo Coded Modulation Scheme for Deep Space Optical Communications

2010 ◽  
Vol E93.B (5) ◽  
pp. 1260-1263 ◽  
Author(s):  
Sangmok OH ◽  
Inho HWANG ◽  
Adrish BANERJEE ◽  
Jeong Woo LEE
Keyword(s):  
Optical Communications ◽  
Coded Modulation ◽  
Modulation Scheme ◽  
Deep Space ◽  
Turbo Coded Modulation
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