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|Title:||Maximizing system reachability for P2P-based interactive spatial audio applications in networked virtual environments|
|Citation:||Liang, K.,Zimmermann, R. (2011). Maximizing system reachability for P2P-based interactive spatial audio applications in networked virtual environments. Proceedings - IEEE International Conference on Multimedia and Expo. ScholarBank@NUS Repository. https://doi.org/10.1109/ICME.2011.6012020|
|Abstract:||We are interested to provide interactive spatial audio services for networked virtual environments (NVEs) in a peer-to-peer manner. The objective is to maximize the system reachability via efficiently utilizing the network capacities of users. We first propose a helper decomposition algorithm to construct an abstraction layer which consists of helpers formed by participating users. Each user selects a set of helpers that forward the audio streams on behalf of the user. We prove that the system reachability is Schur-concave on the loads of non-occupied helpers. We then propose a game-theoretic algorithm, termed water-fitting, to maximize the system reachability by rapidly balancing the loads of non-occupied helpers. The simulation results show that the proposed algorithms can achieve a near-optimal system reachability with respect to churn, avatar mobility and unpredictable speaking activity. © 2011 IEEE.|
|Source Title:||Proceedings - IEEE International Conference on Multimedia and Expo|
|Appears in Collections:||Staff Publications|
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