IEICE TRANSACTIONS on Communications
Fairness-Aware Superposition Coded Scheduling for a Multi-User Cooperative Cellular System
Summary :
We consider Downlink (DL) scheduling for a multi-user cooperative cellular system with fixed relays. The conventional scheduling trend is to avoid interference by allocating orthogonal radio resources to each user, although simultaneous allocation of users on the same resource has been proven to be superior in, e.g., the broadcast channel. Therefore, we design a scheduler where in each frame, two selected relayed users are supported simultaneously through the Superposition Coding (SC) based scheme proposed in this paper. In this scheme, the messages destined to the two users are superposed in the modulation domain into three SC layers, allowing them to benefit from their high quality relayed links, thereby increasing the sum-rate. We derive the optimal power allocation over these three layers that maximizes the sum-rate under an equal rates' constraint. By integrating this scheme into the proposed scheduler, the simulation results show that our proposed SC scheduler provides high throughput and rate outage probability performance, indicating a significant fairness improvement. This validates the approach of simultaneous allocation versus orthogonal allocation in the cooperative cellular system.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E94-B No.12 pp.3272-3279
- Publication Date
- 2011/12/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E94.B.3272
- Type of Manuscript
- Special Section PAPER (Special Section on Cooperative Communications for Cellular Networks)
- Category
Authors
Keyword
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Megumi KANEKO, Kazunori HAYASHI, Petar POPOVSKI, Hideaki SAKAI, "Fairness-Aware Superposition Coded Scheduling for a Multi-User Cooperative Cellular System" in IEICE TRANSACTIONS on Communications,
vol. E94-B, no. 12, pp. 3272-3279, December 2011, doi: 10.1587/transcom.E94.B.3272.
Abstract: We consider Downlink (DL) scheduling for a multi-user cooperative cellular system with fixed relays. The conventional scheduling trend is to avoid interference by allocating orthogonal radio resources to each user, although simultaneous allocation of users on the same resource has been proven to be superior in, e.g., the broadcast channel. Therefore, we design a scheduler where in each frame, two selected relayed users are supported simultaneously through the Superposition Coding (SC) based scheme proposed in this paper. In this scheme, the messages destined to the two users are superposed in the modulation domain into three SC layers, allowing them to benefit from their high quality relayed links, thereby increasing the sum-rate. We derive the optimal power allocation over these three layers that maximizes the sum-rate under an equal rates' constraint. By integrating this scheme into the proposed scheduler, the simulation results show that our proposed SC scheduler provides high throughput and rate outage probability performance, indicating a significant fairness improvement. This validates the approach of simultaneous allocation versus orthogonal allocation in the cooperative cellular system.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E94.B.3272/_p
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@ARTICLE{e94-b_12_3272,
author={Megumi KANEKO, Kazunori HAYASHI, Petar POPOVSKI, Hideaki SAKAI, },
journal={IEICE TRANSACTIONS on Communications},
title={Fairness-Aware Superposition Coded Scheduling for a Multi-User Cooperative Cellular System},
year={2011},
volume={E94-B},
number={12},
pages={3272-3279},
abstract={We consider Downlink (DL) scheduling for a multi-user cooperative cellular system with fixed relays. The conventional scheduling trend is to avoid interference by allocating orthogonal radio resources to each user, although simultaneous allocation of users on the same resource has been proven to be superior in, e.g., the broadcast channel. Therefore, we design a scheduler where in each frame, two selected relayed users are supported simultaneously through the Superposition Coding (SC) based scheme proposed in this paper. In this scheme, the messages destined to the two users are superposed in the modulation domain into three SC layers, allowing them to benefit from their high quality relayed links, thereby increasing the sum-rate. We derive the optimal power allocation over these three layers that maximizes the sum-rate under an equal rates' constraint. By integrating this scheme into the proposed scheduler, the simulation results show that our proposed SC scheduler provides high throughput and rate outage probability performance, indicating a significant fairness improvement. This validates the approach of simultaneous allocation versus orthogonal allocation in the cooperative cellular system.},
keywords={},
doi={10.1587/transcom.E94.B.3272},
ISSN={1745-1345},
month={December},}
Copy
TY - JOUR
TI - Fairness-Aware Superposition Coded Scheduling for a Multi-User Cooperative Cellular System
T2 - IEICE TRANSACTIONS on Communications
SP - 3272
EP - 3279
AU - Megumi KANEKO
AU - Kazunori HAYASHI
AU - Petar POPOVSKI
AU - Hideaki SAKAI
PY - 2011
DO - 10.1587/transcom.E94.B.3272
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E94-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2011
AB - We consider Downlink (DL) scheduling for a multi-user cooperative cellular system with fixed relays. The conventional scheduling trend is to avoid interference by allocating orthogonal radio resources to each user, although simultaneous allocation of users on the same resource has been proven to be superior in, e.g., the broadcast channel. Therefore, we design a scheduler where in each frame, two selected relayed users are supported simultaneously through the Superposition Coding (SC) based scheme proposed in this paper. In this scheme, the messages destined to the two users are superposed in the modulation domain into three SC layers, allowing them to benefit from their high quality relayed links, thereby increasing the sum-rate. We derive the optimal power allocation over these three layers that maximizes the sum-rate under an equal rates' constraint. By integrating this scheme into the proposed scheduler, the simulation results show that our proposed SC scheduler provides high throughput and rate outage probability performance, indicating a significant fairness improvement. This validates the approach of simultaneous allocation versus orthogonal allocation in the cooperative cellular system.
ER -
English
