LTE Vienna Simulator SystemLevel simulation Intercell RRM Multicell

LTE Vienna Simulator System-Level simulation Inter-cell RRM Multi-cell RRM

Deployments n Macrocell as a Primary Network n Femtocell as a Secondary Network n Block type: 5 x 5 grid, House dimensions: 10 x 10 F 1 F 2 F 3 F 1 F 4 F 5 F 6 F 4 F 10 F 9 F 1 F 2 F 3 F 1

What system-level sim. can simulate n n n n Inter-cell/multi-cell Interference Energy efficiency and Power control Mobility & Handovers issues Multi-User Scheduling BLER & HARQ techniques SINR-to-Date Rate mapping techniques Network related issues

What system-level sim. can simulate n n n Closed-access femtocell network. Capability to customize, location, power, antenna pattern, path loss, etc. Matrix form optimization in order to exploit matlab’s core engine. Support static schemes: FR 1, FR 3, SFR, FFR Support dynamic schemes n n centralized/distributed/decentralized Support of linear programming solver: ‘CPLEX’

The concept of Inter-cell RRM BS Coordination Delay ICIC User Scheduling UE Reports CQIs 1 2 3 4 5 6 7 … 15 Delay Static Adaptive Real - time

Common Question & Answers n Can be used for COGNITIVE Radio Network n n Can be used for Ad hoc networks n n By assuming macrocell as a primary network and femtocell as a secondary network By assuming a non-fixed deployment and decentralized controller. Can be used for satellites n No

LTE_load_params (settings) 7

LTE_load_params (settings)

LTE BLER curves for CQI 1 to 15

SINR to DATA linear model

Statistic of LTE deployment - Path loss

Statistic of LTE deployment - Shadowing

Analytical Results of each UE

Analytical Results of each e. NB

LTE launcher 15

LTE_sim_main file for each TTI Get CQIs Dynamic scheme General template EE Dynamic Example Schedule UEs End

Dynamic Scheme Part 1 (Template) Collected all CQIs reports from e. NBs Calculate the SE (spectral efficiency) Calculate user fairness

Dynamic Scheme Part 2 (Template) Collected Utility Find the best user Initialized User Scheduling Power Scheduling

Results Avg Cell throughput in Mps Avg Transmit Power in W Avg Cell-edge throughput in KBs 5% of CDF of user average T-put

Results of each e. NB Avg Cell throughput in Mps Avg Transmit Power in W Avg Cell-edge throughput in KBs 5% of CDF of user average T-put

Results of FR 1 21

Results of Dynamic EE

SOTA Comparison EE Cell T-Put 5 th CDF T-Put The system throughput is depicted against the critical throughput of deprived UEs for all the some baseline reuse techniques using a varying choice of effective reuse measure.

Q&A