Spatio-Temporal Correlation of Interference in MANET Under Spatially Correlated Shadowing Environment
arXiv:1912.09650 · doi:10.1109/TMC.2019.2959990
Abstract
Correlation of interference affects spatio-temporal aspects of various wireless mobile systems, such as retransmission, multiple antennas and cooperative relaying. In this paper, we study the spatial and temporal correlation of interference in mobile ad-hoc networks under a correlated shadowing environment. By modeling the node locations as a Poisson point process with an i.i.d. mobility model and considering Gudmundson (1991)' s spatially correlated shadowing model, we theoretically analyze the relationship between the correlation distance of log-normal shadowing and the spatial and temporal correlation coefficients of interference. Since the exact expressions of the correlation coefficients are intractable, we obtain their simple asymptotic expressions as the variance of log-normal shadowing increases. We found in our numerical examples that the asymptotic expansions can be used as tight approximate formulas and useful for modeling general wireless systems under spatially correlated shadowing.
arXiv commentto appear in IEEE Transactions on Mobile Computing
References in corpus (12)
- Average Rate of Downlink Heterogeneous Cellular Networks over Generalized Fading Channels - A Stochastic Geometry Approach
- Spatial and Temporal Correlation of the Interference in ALOHA Ad Hoc Networks
- A New Phase Transition for Local Delays in MANETs
- Effect of Spatial Interference Correlation on the Performance of Maximum Ratio Combining
- Cooperative Relaying in Wireless Networks under Spatially and Temporally Correlated Interference
- Quality of Service in Wireless Cellular Networks Subject to Log-Normal Shadowing
- Cooperative Relaying in a Poisson Field of Interferers: A Diversity Order Analysis
- Temporal Correlation of Interference and Outage in Mobile Networks over One-Dimensional Finite Regions
- Temporal Correlation of Interference in Bounded Mobile Ad Hoc Networks with Blockage
- Auto-Correlation and Coherence Time of Interference in Poisson Networks
- Correlated Interference from Uncorrelated Users in Bounded Ad Hoc Networks with Blockage
- Correlations of Interference and Link Successes in Heterogeneous Cellular Networks