Due to the difficulty of coordination in multi-cell random access, it is a practical challenge how to achieve the optimal throughput with decentralized transmission. In this paper, we propose a decentralized multi-cell aware opportunistic random access (MA-ORA) protocol that almost achieves the optimal throughput scaling in a multi-cell random access network with one access point (AP) and multiple users in each cell. Under our MA-ORA protocol, each user opportunistically transmits with a predefined physical layer data rate if the desired signal power to the serving AP is sufficiently large and the generating interference power is sufficiently small. As a main result, it is shown that the proposed MA-ORA protocol can achieve both the almost full multiplexing and multiuser diversity gains in a high signal-to-noise ratio regime if the number of users scales faster than a certain level. Our results are validated by computer simulations.
|Title of host publication||2017 IEEE International Conference on Communications, ICC 2017|
|Editors||Merouane Debbah, David Gesbert, Abdelhamid Mellouk|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Publication status||Published - 2017 Jul 28|
|Event||2017 IEEE International Conference on Communications, ICC 2017 - Paris, France|
Duration: 2017 May 21 → 2017 May 25
|Name||IEEE International Conference on Communications|
|Other||2017 IEEE International Conference on Communications, ICC 2017|
|Period||17/5/21 → 17/5/25|
Bibliographical noteFunding Information:
ACKNOWLEDGMENT This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (MSIP) (2015R1A2A1A15054248).
All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
- Electrical and Electronic Engineering