International Journal of Information and Communication Technology Research
مجله بین المللی ارتباطات و فناوری اطلاعات
International Journal of Information and Communication Technology Research
Engineering & Technology
http://ijict.itrc.ac.ir
1
admin
2251-6107
2783-4425
doi
1652
25391
en
jalali
1395
9
1
gregorian
2016
12
1
8
4
online
1
fulltext
fa
Spatial Interference Alignment in Relay-Assisted Multi-Cell Multi-User Networks
فناوری اطلاعات
Information Technology
پژوهشي
Research
In this paper, the spatial interference alignment (IA) is investigated in the downlink (DL) of a relay-assisted<br>
multi-cell multi-user network. The transmission from the base station (BS) to the mobile station (MS) takes place in<br>
two phases with the help of the selected relay station (RS). The closed-form IA algorithms are employed in both the<br>
BS to RS and RS to MS links. The performance of this cooperative scheme is analyzed in terms of the sum rate and<br>
the sum degrees of freedom (DoF) for the amplify-and-forward (AF) and decode-and-forward (DF) relaying schemes.<br>
The simulation results of the sum rate show that the DF scheme significantly outperforms the noncooperative minleakage<br>
and max-SINR iterative algorithms over the entire range of SNR, and the AF scheme performs very close to<br>
the min-leakage algorithm. Moreover, the DF scheme outperforms the noncooperative closed-form IA algorithm in<br>
the low and medium-SNR regimes.
Cellular network, degrees of freedom, interference alignment, relay, sum rate
1
10
http://ijict.itrc.ac.ir/browse.php?a_code=A-10-27-28&slc_lang=fa&sid=1
Ali
Golestani
100319475328460087
100319475328460087
Yes
Ali
H. Bastami
100319475328460088
100319475328460088
No
Kamal
Mohamed-pour
100319475328460089
100319475328460089
No