Computing Realistic and Adaptive Capacity of D2D Contacts

Clément Bertier (1, 2) , Farid Benbadis (1) , Vania Conan (3) , Marcelo Dias de Amorim (2)

1 THALES COMMUNICATIONS & SECURITY
2 NPA - Networks and Performance Analysis
3 Thales Communications [Colombes]

Assessing the performance of opportunistic networks requires a subtle understanding of both contact and intercontact patterns. While the analysis of intercontacts has attracted significant attention from the research community, surprisingly only a few works have focused on explaining what happens during a contact. In this paper, we perform an in-depth analysis of contacts using both empirical measurements and reference models. We make several observations that allow us to better capture the adaptive nature of device-to-device (D2D)links. In particular, in the case of Wi-Fi 5, we show that a slight modification of the nominal modulation scheme is enough to achieve an accurate characterization of opportunistic contacts for some categories of propagation models. As a consequence, we confirm previous observations that the evaluation of protocols and algorithms for D2D networks based on links of fixed rate may lead to inaccurate results. We finally propose a tool that extends mobility traces with plausible values of per-link capacity.

Mots clés: Throughput; Device-to-device communication; Modulation; Wireless communication; Adaptation models; Wireless fidelity; Tools

Domaines: Réseaux et télécommunications [cs.NI]; Informatique ubiquitaire; Informatique mobile; Réseaux sociaux et d'information [cs.SI]

Clément Bertier, Farid Benbadis, Vania Conan, Marcelo Dias de Amorim. Computing Realistic and Adaptive Capacity of D2D Contacts. IEEE International Symposium on a World of Wireless, Mobile, and Multimedia Networks (WoWMoM), Jun 2019, Washington, DC, United States. pp.1-9, ⟨10.1109/WoWMoM.2019.8792976⟩. ⟨hal-02348785⟩