{"id":4203,"date":"2018-09-27T13:59:53","date_gmt":"2018-09-27T13:59:53","guid":{"rendered":"https:\/\/plumconsulting.co.uk\/spectrum-management\/modele-des-couts-iteratifs\/"},"modified":"2019-12-06T17:18:33","modified_gmt":"2019-12-06T17:18:33","slug":"modele-des-couts-iteratifs","status":"publish","type":"page","link":"https:\/\/plumconsulting.co.uk\/fr\/spectrum-management\/modele-des-couts-iteratifs\/","title":{"rendered":"Mod\u00e8le de co\u00fbts r\u00e9currents"},"content":{"rendered":"

Le mod\u00e8le de co\u00fbts r\u00e9currents permet une approche alternative de l\u2019analyse des donn\u00e9es et de la demande de spectre, en consid\u00e9rant les consommateurs de donn\u00e9es et les op\u00e9rateurs de r\u00e9seau comme des agents \u00e9conomiques rationnels. En d\u2019autres termes, les consommateurs ajustent leur consommation de donn\u00e9es en r\u00e9ponse aux variations de co\u00fbts unitaires et de prix (plut\u00f4t que de simplement exiger la m\u00eame quantit\u00e9 de donn\u00e9es, ind\u00e9pendamment du co\u00fbt et du prix). Du point de vue de l\u2019offre, les op\u00e9rateurs augmentent la capacit\u00e9 du r\u00e9seau tant que les consommateurs sont dispos\u00e9s \u00e0 payer pour la capacit\u00e9 suppl\u00e9mentaire.<\/p>\n

Une analogie de l\u2019approche it\u00e9rative est la planification du trafic routier. Les responsables de la planification des transports ont remarqu\u00e9 que l\u2019augmentation de la capacit\u00e9 routi\u00e8re ne r\u00e9solvait pas le probl\u00e8me de la congestion. Au lieu de cela, elle augmentait le nombre de voyages jusqu\u2019\u00e0 ce que la congestion soit \u00e0 nouveau une contrainte. L\u2019augmentation de la capacit\u00e9 routi\u00e8re a r\u00e9duit le co\u00fbt (en termes de temps) d\u2019un trajet en voiture, ce qui a entra\u00een\u00e9 une augmentation du nombre de d\u00e9placements en voiture. Le mod\u00e8le des co\u00fbts it\u00e9ratifs applique ce raisonnement \u00e0 la consommation de donn\u00e9es mobiles : selon ce mod\u00e8le, la demande et l\u2019offre de donn\u00e9es r\u00e9agissent aux \u00e9volutions des conditions du march\u00e9.<\/p>\n

L\u2019approche it\u00e9rative int\u00e8gre, d\u2019une part, une hypoth\u00e8se de demande (les consommateurs ach\u00e8tent des donn\u00e9es mobiles tant qu\u2019ils sont dispos\u00e9s \u00e0 payer) et, d\u2019autre part, une r\u00e8gle de d\u00e9cision d\u2019investissement du c\u00f4t\u00e9 de l\u2019offre (les consommateurs investissent uniquement s’ils sont dispos\u00e9s \u00e0 payer au-del\u00e0 du co\u00fbt). Le mod\u00e8le est ainsi r\u00e9solu de mani\u00e8re it\u00e9rative pour trouver un \u00e9quilibre entre l\u2019offre (la capacit\u00e9) et la demande de donn\u00e9es, comme illustr\u00e9 ci-dessous.<\/p>\n

\"\"<\/p>\n

Le c\u0153ur du mod\u00e8le de co\u00fbts r\u00e9currents est similaire au mod\u00e8le de co\u00fbts \u00e9vit\u00e9s <\/a>: il contient un module de dimensionnement du r\u00e9seau qui calcule un co\u00fbt de r\u00e9seau \u00e0 partir des volumes et des stocks de fr\u00e9quences. Cependant, le mod\u00e8le de co\u00fbts r\u00e9currents utilise le r\u00e9sultat de ce module central pour d\u00e9terminer de quelle mani\u00e8re les co\u00fbts unitaires seraient impact\u00e9s apr\u00e8s modification des param\u00e8tres du mod\u00e8le (portefeuille de spectre, utilisation du r\u00e9seau ou efficacit\u00e9 spectrale) et de quelle mani\u00e8re la demande serait affect\u00e9e, puis alimente de nouveau le module central \u00e0 l\u2019aide de ces informations.<\/p>\n

Cet exercice est r\u00e9p\u00e9t\u00e9 un certain nombre de fois (soit un nombre d\u00e9fini, soit jusqu\u2019\u00e0 ce qu\u2019un \u00e9quilibre entre l\u2019offre et la demande soit atteint). Une fois l\u2019\u00e9quilibre trouv\u00e9, l\u2019impact du spectre suppl\u00e9mentaire peut \u00eatre \u00e9valu\u00e9, soit par le biais d\u2019une m\u00e9thodologie de co\u00fbts \u00e9vit\u00e9s (le spectre suppl\u00e9mentaire r\u00e9duit le co\u00fbt d\u2019acc\u00e8s \u00e0 l\u2019\u00e9quilibre de la demande), soit par une m\u00e9thodologie de surplus du consommateur (le spectre suppl\u00e9mentaire permet de consommer davantage de donn\u00e9es, au profit des consommateurs et de la soci\u00e9t\u00e9).<\/p>\n

L\u2019approche it\u00e9rative offre plusieurs avantages. Premi\u00e8rement, elle supprime la n\u00e9cessit\u00e9 d\u2019une pr\u00e9vision de donn\u00e9es en tant qu\u2019intrant (bien qu\u2019une hypoth\u00e8se sur la d\u00e9pense par utilisateur soit requise). Deuxi\u00e8mement, l\u2019approche it\u00e9rative r\u00e9duit consid\u00e9rablement la sensibilit\u00e9 des r\u00e9sultats aux modifications des param\u00e8tres d\u2019entr\u00e9e. Enfin, le cadre \u00e9conomique de l\u2019approche it\u00e9rative permet des r\u00e9sultats diff\u00e9rents d\u2019un point de vue qualitatif par rapport \u00e0 ceux issus des approches de mod\u00e9lisation conventionnelles.<\/p>\n","protected":false},"excerpt":{"rendered":"

Le mod\u00e8le de co\u00fbts r\u00e9currents permet une approche alternative de l\u2019analyse des donn\u00e9es et de la demande de spectre, en consid\u00e9rant les consommateurs de donn\u00e9es et les op\u00e9rateurs de r\u00e9seau comme des agents \u00e9conomiques rationnels. En d\u2019autres termes, les consommateurs ajustent leur consommation de donn\u00e9es en r\u00e9ponse aux variations de co\u00fbts unitaires et de prix[…]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3691,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4203","page","type-page","status-publish","hentry"],"yoast_head":"\nMod\u00e8le de co\u00fbts r\u00e9currents - Plum Consulting<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/plumconsulting.co.uk\/fr\/spectrum-management\/modele-des-couts-iteratifs\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mod\u00e8le de co\u00fbts r\u00e9currents - Plum Consulting\" \/>\n<meta property=\"og:description\" content=\"Le mod\u00e8le de co\u00fbts r\u00e9currents permet une approche alternative de l\u2019analyse des donn\u00e9es et de la demande de spectre, en consid\u00e9rant les consommateurs de donn\u00e9es et les op\u00e9rateurs de r\u00e9seau comme des agents \u00e9conomiques rationnels. 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