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http://hdl.handle.net/10119/13470
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| Title: | Massive Uncoordinated Multiway Relay Networks with Simultaneous Detections |
| Authors: | Hasan, Mohammad Nur
Anwar, Khoirul |
| Keywords: | Multiway relay systems
iterative processing
random access
codes on the graph
coded slotted ALOHA |
| Issue Date: | 2015-06 |
| Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
| Magazine name: | 2015 IEEE International Conference on Communication Workshop (ICCW) |
| Start page: | 2175 |
| End page: | 2180 |
| DOI: | 10.1109/ICCW.2015.7247504 |
| Abstract: | In this paper, we consider multiway relay networks with massive number of users. In this situation a fixed transmission scheduling is difficult to apply. We propose uncoordinated communications using the concept of coded slotted ALOHA(CSA), where simultaneous transmitted signals are detected using iterative demapping (IDM) algorithm to improve the success rate probability. We allow each user to transmit the information via any random time slots (during the contention period) to the network. We show the bound of the proposed system and confirm an achievable point using practical coding. We also evaluate the bit-error-rate (BER) performance of the proposed technique via computer simulations. The results indicate that even though with the offered traffic of 1.11 packets/slot, reliable communications is achievable. It is also validated that the proposed system works very well even in relatively low signal-to-noise ratio (SNR) environments. Moreover, the packet-loss-rate (PLR) evaluation shows that the proposed technique outperforms the conventional CSA without simultaneous detection algorithm. |
| Rights: | This is the author's version of the work. Copyright (C) 2015 IEEE. 2015 IEEE International Conference on Communication Workshop (ICCW), 2015, 2175-2180. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
| URI: | http://hdl.handle.net/10119/13470 |
| Material Type: | author |
| Appears in Collections: | b11-1. 会議発表論文・発表資料 (Conference Papers)
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