講演情報
[BPO-1-14]Evaluating the Cost of Request Blocking Guarantees in Advance Lightpath Reservation Service
〇Orawiwattanakul Tananun1、Miyasaka Takuya1 (1. KDDI Research Inc.)
キーワード：
Advance Lightpath Reservation Service
The Advance Lightpath Reservation Service (ALRS) enables users to reserve dedicated wavelength paths in advance. As ALRS evolves toward premium optical services, Request Blocking Probability (RBP) becomes an important service-quality metric because users expect immediate reservation availability. However, some request types, such as short-booking-window (BkWd, the interval between a reservation request and the start of usage), long-hop, and long-duration requests, experience significantly higher RBPs than the average over all requests. These are collectively referred to as High-RBP Groups (HRG). This paper proposes an Adaptive Resource Pool (ARP) mechanism that guarantees class-level RBP targets. ARP combines an online RBP estimator with dynamic wavelength-pool allocation, enabling providers to maintain service-level guarantees while limiting resource cost. The proposed framework is evaluated through simulation and compared with the conventional Full Sharing Scheme (FSS).