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Infrastructure-Less Communication Platform for Off-The-Shelf Android Smartphones.
Takuma Oide1, Toru Abe2, Takuo Suganuma3
1Graduate School of Information Sciences, Tohoku University, Miyagi 980-8577, Japan. oide@ci.cc.tohoku.ac.jp.
This study introduces a novel tree-structured device-to-device (D2D) communication platform for Android, enhancing ad hoc networking. The platform efficiently merges Wi-Fi Direct and Wi-Fi, enabling instant network construction without prior knowledge sharing.
Area of Science:
- Computer Science
- Wireless Communication
- Mobile Computing
Background:
- Growing popularity of sophisticated portable devices increases communication opportunities.
- Device-to-device (D2D) communication offers bandwidth efficiency but faces multi-hop communication challenges.
- Existing D2D platforms often require protocol and operating system (OS) modifications.
Purpose of the Study:
- To propose and evaluate a novel tree-structured D2D communication platform for Android devices.
- To enable efficient, infrastructure-less ad hoc network construction using existing Wi-Fi capabilities.
- To demonstrate the feasibility and performance of the proposed platform.
Main Methods:
- Design of a tree-structured D2D communication platform combining Wi-Fi Direct and Wi-Fi functions.
- Implementation of a prototype on Android 4.0 (or higher) OS devices.
- Experimental evaluation of communication delays, stability, and terminal performance based on hop count.
Main Results:
- Successful design and prototype implementation of the proposed tree-structured D2D platform.
- Demonstrated feasibility of instantaneous ad hoc network construction without prior device knowledge.
- Experimental data on communication delays and stability across varying hop counts and terminal loads.
Conclusions:
- The proposed tree-structured D2D platform offers a viable solution for efficient multi-hop communication on Android devices.
- The platform effectively utilizes Wi-Fi Direct and Wi-Fi, minimizing the need for OS or protocol modifications.
- The experimental results validate the platform's performance in terms of delay and stability for ad hoc networking.

