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Ares(2014)3639899 - 03/11/2014 317959 Mobile Opportunistic Traffic Offloading D3.3.1 – Design and evaluation of enabling techniques for mobile data traffic offloading (release a, public) D3.1 Design and evaluation of enabling techniques for mobile data traffic offloading (release a) WP3 – Offloading foundations and enablers © MOTO Consortium – 2014 D3.1 Design and evaluation of enabling techniques for mobile data traffic offloading (release a) WP3 – Offloading foundations and enablers Grant Agreement No. 317959 Project acronym MOTO Project title Mobile Opportunistic Traffic Offloading Advantage Deliverable number D3.3.1 Deliverable name Design and evaluation of enabling techniques for mobile data traffic offloading (release a) Version V 3.0 WorK pacKage WP3 – Offloading foundations and enablers Lead beneficiary CNR Authors Vania Conan (TCS), Filippo Rebecchi (TCS), Raffaele Bruno (CNR), Andrea Passarella (CNR), Elisabetta Biondi (CNR), Chiara Boldrini (CNR), Antonino Masaracchia (CNR), Giovanni Mainetto (CNR), Marcelo Dias de Amorim (UPMC), Filippo Rebecchi (UPMC), Engin Zeydan (AVEA), Ahmet Serdar Tan (AVEA), Eva Pierattelli (INTECS), Daniele Azzarelli (INTECS). Nature R – Report Dissemination level PU – Public Delivery date 31/10/2014 (M24) © MOTO Consortium – 2014 D3.1 Design and evaluation of enabling techniques for mobile data traffic offloading (release a) WP3 – Offloading foundations and enablers Table of Contents LIST OF FIGURES ........................................................................................................................................ 5 EXECUTIVE SUMMARY .............................................................................................................................. 7 1 INTRODUCTION ................................................................................................................................... 8 1.1 PROBLEM STATEMENT: OBJECTIVES OF THE WP AND APPROACH IN ADDRESSING THEM ........................................ 8 1.2 ENABLING TECHNIQUES FOR MOBILE DATA TRAFFIC OFFLOADING: A SUMMARY ................................................... 9 1.2.1 TasK 3.2: Capacity limits and improvements in networKs with offloading ................................... 9 1.2.2 TasK 3.3: Scheduling issues in networKs with offloading ........................................................... 11 1.2.3 Progress with respect to Y1 activities ........................................................................................ 12 1.3 WP3 ACTIVITIES IN THE OVERALL FRAMEWORK OF THE PROJECT ..................................................................... 12 2 CAPACITY ANALYSIS: ASSESSING CAPACITY OF OPPORTUNISTIC NETWORKS ..................................... 14 2.1 CONVERGENCE OF OPPORTUNISTIC NETWORKING PROTOCOLS ....................................................................... 14 2.1.1 Social-oblivious protocols .......................................................................................................... 16 2.1.2 Social-aware protocols ............................................................................................................... 17 2.1.2.1 Definition of social-aware forwarding protocols ................................................................ 17 2.1.2.2 Convergence conditions for social-aware protocols ........................................................... 17 2.1.3 Comparing social-oblivious and social-aware schemes ............................................................. 19 2.2 END-TO-END DELAY IN OPPORTUNISTIC NETWORKS IN PRESENCE OF DUTY CYCLING ............................................ 20 2.2.1 Optimal duty cycling settings ..................................................................................................... 20 3 CAPACITY ANALYSIS: ASSESSING CAPACITY OF LTE ............................................................................ 23 3.1 LTE MAC-LAYER THROUGHPUT ............................................................................................................... 24 3.1.1 LTE MAC Model .......................................................................................................................... 24 3.1.2 Throughput Analysis ................................................................................................................... 25 3.1.3 Validation ................................................................................................................................... 30 3.2 ROBUST AMC IN LTE USING REINFORCEMENT LEARNING ............................................................................. 31 3.2.1 Protocol design .......................................................................................................................... 32 3.2.2 Performance evaluation ............................................................................................................. 33 4 CAPACITY ANALYSIS: ASSESSING CAPACITY OF AN INTEGRATED OFFLOADED NETWORK ................... 35 4.1 OFFLOADING WITH BOTH OPPORTUNISTIC AND WI-FI NETWORKS ................................................................... 36 4.1.1 Mobility trace and AP position ................................................................................................... 36 4.1.2 Simulation setup and scenario ................................................................................................... 38 4.1.3 Opportunistic or AP-based offloading? ...................................................................................... 38 4.1.4 Energy savings and fairness ....................................................................................................... 40 4.2 OFFLOADING WITH NON-SYNCHRONISED CONTENT REQUESTS ........................................................................ 41 4.2.1 Offloading algorithms for non-synchronised requests ............................................................... 42 4.2.2 Evaluation when all users request the content .......................................................................... 43 4.2.3 Evaluation when all users request the content .......................................................................... 44 5 INTRA-TECHNOLOGY SCHEDULING: JOINT USE OF MULTICAST AND D2D IN CELLULAR NETWORKS ... 46 © MOTO Consortium – 2014 D3.1 Design and evaluation of enabling techniques for mobile data traffic offloading (release a) WP3 – Offloading foundations and enablers 5.1 MULTICAST IN 4G NETWORKS .................................................................................................................. 47 5.2 JOINT D2D / MULTICAST OFFLOADING ....................................................................................................... 48 5.3 PERFORMANCE EVALUATION .................................................................................................................... 48 6 INTRA-TECHNOLOGY SCHEDULING: TOWARDS ENERGY EFFICIENCY IN THE LTE NETWORK ................ 51 6.1 POWER CONSUMPTION MODEL ................................................................................................................ 51 6.2 SIMULATION SET-UP ............................................................................................................................... 52 6.2.1 Switch-off procedures ................................................................................................................ 53 6.2.2 Buildings Module ....................................................................................................................... 56 6.3 SIMULATION RESULTS ............................................................................................................................. 57 7 INTER-TECHNOLOGY SCHEDULING: MULTI-USER OFFLOADING IN HETEROGENEOUS WIRELESS NETWORK INFRASTRUCTURES ................................................................................................................. 60 7.1 TOPSIS-BASED SOLUTIONS IN THE CONTEXT OF ONGOING RESEARCH .............................................................. 60 7.2 PERFORMANCE METRıCS INFLUENCING DATA OFFLOADıNG AND SYSTEM MODEL .............................................. 61 7.3 MULTIUSER OFFLOADING ALGORITHMS FOR HETEROGENEOUS NETWORKS ....................................................... 63 7.3.1 TOPSIS ........................................................................................................................................ 63 7.3.2 Multiple attribute sets in TOPSIS algorithm ............................................................................... 65 7.3.3 Capacity aware multi-user iterative TOPSIS (CAT) algorithm ..................................................... 66 7.3.4 Standard TOPSIS (ST) method .................................................................................................... 67 7.4 PERFORMANCE RESULTS ......................................................................................................................... 67 7.4.1 Simulation Scenario .................................................................................................................... 67 7.4.2 Results ........................................................................................................................................ 68 7.5 USING TOPSIS WITH D2D TECHNOLOGY ................................................................................................... 69 8 OPEN ISSUES ....................................................................................................................................
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