An Enhanced OFDM Resource Allocation Algorithm in C-RAN Based 5G Public Safety Network

المؤلفون المشاركون

Wenjing, Li
Feng, Lei
Xuesong, Qiu
Peng, Yu

المصدر

Mobile Information Systems

العدد

المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-14، 14ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2016-08-25

دولة النشر

مصر

عدد الصفحات

14

التخصصات الرئيسية

هندسة الاتصالات

الملخص EN

Public Safety Network (PSN) is the network for critical communication when disaster occurs.

As a key technology in 5G, Cloud-Radio Access Network (C-RAN) can play an important role in PSN instead of LTE-based RAN.

This paper firstly introduces C-RAN based PSN architecture and models the OFDM resource allocation problem in C-RAN based PSN as an integer quadratic programming, which allows the trade-off between expected bitrates and allocating fairness of PSN Service User (PSU).

However, C-RAN based PSN needs to improve the efficiency of allocating algorithm because of a mass of PSU-RRH associations when disaster occurs.

To deal with it, the resources allocating problem with integer variables is relaxed into one with continuous variables in the first step and an algorithm based on Generalized Bender’s Decomposition (GBD) is proposed to solve it.

Then we use Feasible Pump (FP) method to get a feasible integer solution on the original OFDM resources allocation problem.

The final experiments show the total throughput achieved by C-RAN based PSN is at most higher by 19.17% than the LTE-based one.

And the average computational time of the proposed GBD and FP algorithm is at most lower than Barrier by 51.5% and GBD with no relaxation by 30.1%, respectively.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Feng, Lei& Wenjing, Li& Peng, Yu& Xuesong, Qiu. 2016. An Enhanced OFDM Resource Allocation Algorithm in C-RAN Based 5G Public Safety Network. Mobile Information Systems،Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1111664

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Feng, Lei…[et al.]. An Enhanced OFDM Resource Allocation Algorithm in C-RAN Based 5G Public Safety Network. Mobile Information Systems No. 2016 (2016), pp.1-14.
https://search.emarefa.net/detail/BIM-1111664

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Feng, Lei& Wenjing, Li& Peng, Yu& Xuesong, Qiu. An Enhanced OFDM Resource Allocation Algorithm in C-RAN Based 5G Public Safety Network. Mobile Information Systems. 2016. Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1111664

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1111664