Impact of Relay-to-Relay Interference on the Performance of LTE-Advanced Relay Networks Abdallah Bou Saleh 1 , Ömer Bulakci 1,2 , Simone Redana 2 , Bernhard Raaf 2 , and Jyri Hämäläinen 1 1. Aalto University School of Electrical Engineering, Helsinki, Finland (formerly Helsinki University of Technology-HUT) 2. Nokia Siemens Networks, NSN-Research, Radio Systems, Munich, Germany 17. VDE/ITG Workshop on 09.05.2012 -Mobile Communications-
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Impact of Relay-to-Relay Interference on the Performance of LTE-Advanced Relay Networks
Abdallah Bou Saleh1, Ömer Bulakci1,2, Simone Redana2, Bernhard Raaf2, and Jyri Hämäläinen1 1. Aalto University School of Electrical Engineering, Helsinki, Finland (formerly Helsinki University of Technology-HUT) 2. Nokia Siemens Networks, NSN-Research, Radio Systems, Munich, Germany
17. VDE/ITG Workshop on 09.05.2012
-Mobile Communications-
• Introduction
• Problem Definition and Objective
• Subframe Configuration Alignment Schemes
• Performance Evaluation
• Conclusions
Content
eNB-only Deployments
Relaying in LTE-Advanced: Characteristics
DeNB
RN
relay-UEs
Direct link
1 ms
macro-UEs
Access link
Relay link
Type 1 RN Deployment
eNB Direct link
1 ms
macro-UEs Macrocell (eNB-only)
Deployment
“Type 1” Relay Deployments – Same carrier for backhaul and access links – Time division multiplexing backhaul ↔ access
In-band “Type 1” C1
C1 C1
RN DeNB
LTE Frame
LTE Frame
C1
eNB
(4/16) / A. Bou Saleh / 9.May.2012 Presenter: Ö. Bulakci
• Introduction
• Problem Definition and Objective
• Subframe Configuration Alignment Schemes
• Performance Evaluation
• Conclusions
Content
Interference Models (1/2)
Types of Interference: A. Traditional Inter-cell Interference: Access-to-Access