Full Text:   <603>

Summary:  <297>

CLC number: TN911

On-line Access: 2016-08-05

Received: 2015-09-10

Revision Accepted: 2016-04-25

Crosschecked: 2016-07-21

Cited: 1

Clicked: 1789

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Ning Du

http://orcid.org/0000-0003-3934-2289

-   Go to

Article info.
Open peer comments

Frontiers of Information Technology & Electronic Engineering  2016 Vol.17 No.8 P.825-833

10.1631/FITEE.1500294


A novel resource optimization scheme for multi-cell OFDMA relay network


Author(s):  Ning Du, Fa-sheng Liu

Affiliation(s):  College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266590, China; more

Corresponding email(s):   lczhlydn@126.com

Key Words:  Intra-cell communication, Two-way relay, Subcarrier assignment, Subcarrier pairing


Ning Du, Fa-sheng Liu. A novel resource optimization scheme for multi-cell OFDMA relay network[J]. Frontiers of Information Technology & Electronic Engineering, 2016, 17(8): 825-833.

@article{title="A novel resource optimization scheme for multi-cell OFDMA relay network",
author="Ning Du, Fa-sheng Liu",
journal="Frontiers of Information Technology & Electronic Engineering",
volume="17",
number="8",
pages="825-833",
year="2016",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.1500294"
}

%0 Journal Article
%T A novel resource optimization scheme for multi-cell OFDMA relay network
%A Ning Du
%A Fa-sheng Liu
%J Frontiers of Information Technology & Electronic Engineering
%V 17
%N 8
%P 825-833
%@ 2095-9184
%D 2016
%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.1500294

TY - JOUR
T1 - A novel resource optimization scheme for multi-cell OFDMA relay network
A1 - Ning Du
A1 - Fa-sheng Liu
J0 - Frontiers of Information Technology & Electronic Engineering
VL - 17
IS - 8
SP - 825
EP - 833
%@ 2095-9184
Y1 - 2016
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/FITEE.1500294


Abstract: 
In cellular networks, users communicate with each other through their respective base stations (BSs). Conventionally, users are assumed to be in different cells. BSs serve as decode-and-forward (DF) relay nodes to users. In addition to this type of conventional user, we recognize that there are scenarios users who want to communicate with each other are located in the same cell. This gives rise to the scenario of intra-cell communication. In this case, a BS can behave as a two-way relay to achieve information exchange instead of using conventional DF relay. We consider a multi-cell orthogonal frequency division multiple access (OFDMA) network that comprises these two types of users. We are interested in resource allocation between them. Specifically, we jointly optimize subcarrier assignment, subcarrier pairing, and power allocation to maximize the weighted sum rate. We consider the resource allocation problem at BSs when the end users’ power is fixed. We solve the problem approximately through Lagrange dual decomposition. Simulation results show that the proposed schemes outperform other existing schemes.

一种新颖的多小区正交频分多址中继网络资源优化分配算法

概要:在蜂窝网络中,用户通过各自的基站相互通信,且通常位于不同的小区内。对于用户来说,基站相当于一个解码转发中继节点。除了这种传统的用户之外,我们认为相互之间需要通信的用户还可以位于同一小区内,由此产生小区内通信。在这种情况下,基站可作为双向中继取代传统的解码转发中继,实现信息交换。多小区正交频分多址网络同时包含了这两种类型的用户。其中,资源优化分配是我们的研究重点。特别地,我们联合优化子载波分配、子载波成对和功率分配,从而最大化加权速率。通过拉格朗日对偶分解近似求解在用户功率固定的情况下基站资源的最优化问题。仿真结果表明,本文提出的策略优于现有的策略。
关键词:小区内通信;双向中继;子载波分配;子载波成对

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1]Boyd, S., Vandenberghe, L., 2004. Convex Optimization. Cambridge University Press, Cambridge, UK, p.215-219.

[2]Devarajan, R., Punchihewa, A., Bhargava, V.K., 2013. Energy-aware power allocation in cooperative communication systems with imperfect CSI. IEEE Trans. Commun., 61(5):1633-1639.

[3]El Gamal, A., Zahedi, S., 2005. Capacity of a class of relay channels with orthogonal components. IEEE Trans. Inform. Theory, 51(5):1815-1817.

[4]Hajiaghayi, M., Dong, M., Liang, B., 2012. Jointly optimal channel and power assignment for dual-hop multi-channel multi-user relaying. IEEE J. Sel. Areas Commun., 30(9):1806-1814.

[5]Jang, Y.U., Jeong, E.R., Lee, Y.H., 2010. A two-step approach to power allocation for OFDM signals over two-way amplify-and-forward relay. IEEE Trans. Signal Process., 58(4):2426-2430.

[6]Laneman, J.N., Wornell, G.W., 2003. Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks. IEEE Trans. Inform. Theory, 49(10):2415-2425.

[7]Li, X., Zhang, Q., Zhang, G., et al., 2013. Joint power allocation and subcarrier pairing for cooperative OFDM AF multi-relay networks. IEEE Commun. Lett., 17(5):872-875.

[8]Mallick, S., Devarajan, R., Rashid, M.M., et al., 2013. Resource allocation for selective relaying based cellular wireless system with imperfect CSI. IEEE Trans. Commun., 61(5):1822-1834.

[9]Ng, D.W.K., Schober, R., 2010. Cross-layer scheduling for OFDMA amplify-and-forward relay networks. IEEE Trans. Veh. Technol., 59(3):1443-1458.

[10]Ng, D.W.K., Schober, R., 2011. Resource allocation and scheduling in multi-cell OFDMA systems with decode-and-forward relaying. IEEE Trans. Wirel. Commun., 10(7):2246-2258.

[11]Oyman, O., 2010. Opportunistic scheduling and spectrum reuse in relay-based cellular networks. IEEE Trans. Wirel. Commun., 9(3):1074-1085.

[12]Parkvall, S., Furuska, A., Dahlman, E., 2011. Evolution of LTE toward IMT-advanced. IEEE Commun. Mag., 49(2):84-91.

[13]Sendonaris, A., Erkip, E., Aazhang, B., 2003. User cooperation diversity part I: system description. IEEE Trans. Commun., 51(11):1939-1948.

[14]Shim, W., Han, Y., Kim, S., 2010. Fairness-aware resource allocation in a cooperative OFDMA uplink system. IEEE Trans. Veh. Technol., 59(2):932-939.

[15]Sun, Y., Honig, M., 2008. Asymptotic capacity of multi-carrier transmission with frequency-selective fading and limited feedback. IEEE Trans. Inform. Theory, 54(7):2879-2902.

[16]Wang, T., Fang, Y., Vandendorpe, L., 2013. Power minimization for OFDM transmission with subcarrier-pair based opportunistic DF relaying. IEEE Commun. Lett., 17(3):471-474.

[17]Xu, Z., Yang, C., Li, G.Y., et al., 2013. Energy-efficient configuration of spatial and frequency resources in MIMO-OFDMA systems. IEEE Trans. Commun., 61(2):564-575.

[18]Yang, Y., Hu, H., Xu, J., et al., 2009. Relay technologies for WiMax and LTE-advanced mobile systems. IEEE Commun. Mag., 47(10):100-105.

[19]Yang, Y., Nam, C., Shroff, N.B., 2014. A near-optimal randomized algorithm for uplink resource allocation in OFDMA systems. IEEE 12th Int. Symp. on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, p.218-225.

[20]Zhang, H., Liu, Y., Tao, M.X., 2012. Resource allocation with subcarrier pairing in OFDMA two-way relay networks. IEEE Wirel. Commun. Lett., 1(2):61-64.

[21]Zhang, X., Shen, X., Xie, L., 2014. Joint subcarrier and power allocation for cooperative communications in LTE-A advanced networks. IEEE Trans. Wirel. Commun., 13(2):658-668.

Open peer comments: Debate/Discuss/Question/Opinion

<1>

Please provide your name, email address and a comment





Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - Journal of Zhejiang University-SCIENCE