Channel selection observation period length analysis under different channel service rates
| Autor: | Ping Cui, Kailiang Zhang, Daihong Jiang, Yuan An, Lei Chen, Yi Shi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Computer Networks and Communications
Computer science business.industry Network packet ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Data_CODINGANDINFORMATIONTHEORY Discount points Transmission (telecommunications) Statistics Wireless Communication source Electrical and Electronic Engineering Transmission time business Selection (genetic algorithm) Information Systems Communication channel |
| Zdroj: | Wireless Networks. 27:4451-4459 |
| ISSN: | 1572-8196 1022-0038 |
| Popis: | In wireless communication, the sender needs to select an optimal wireless channel from several available ones. However, the instantaneous channel state is time-varying with unknown statistics. Therefore, the channel selection must be based on channel observation. Before the packet arrives, the sender needs to observe the channel state in the observation period. And then the sender transmits packets through the best channel. Observation needs cost time. We investigate the trade-off between the observation period and transmission period. A short observation period usually leads to wrong selection while long observation might waste time. Our simulation results show that there is an optimal length of observation period. The total transmission time experience a sharp decrease before the optimal point. The longer observation does not cause an obvious increase in transmission time. We analyze how the observation time affects the transmission time to explain the simulation results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink