The mean co-channel interference in a distributed antenna system with virtual cells is studied, where a few surrounding remote antenna ports of each user form a virtual cell and serve the user. By assuming that time-division-multiple-access is adopted among the users with overlapping virtual cells, the positions of active users at each time slot are modelled as a Matérn point process of type II, and an upper bound of the mean interference is derived and verified by simulation. The analysis shows that the monotonicity of mean interference depends on the path-loss factor α, which highlights the importance of a carefully selection of virtual cell size according to the propagation environment.

References

1. 1)
  - 6. Wang, J., Dai, L.: ‘Downlink rate analysis for virtual-cell based large-scale distributed antenna systems’, IEEE Trans. Wirel. Commun., 2016, 15, (3), pp. 1998–2011 (doi: 10.1109/TWC.2015.2497678).
2. 2)
  - 3. C-RAN: ‘The road towards green RAN’, October 2011, white paper, ver. 2.5.
3. 3)
  - 6. Liu, Z., Dai, L.: ‘A comparative study of downlink MIMO cellular networks with co-located and distributed base-station antennas’, IEEE Trans. Wirel. Commun., 2014, 13, (11), pp. 6259–6274 (doi: 10.1109/TWC.2014.2355833).
4. 4)
  - 10. Haenggi, M.: ‘Stochastic geometry for wireless networks’ (Cambridge University Press, 2013).
5. 5)
  - 7. Haenggi, M.: ‘Mean interference in hard-core wireless networks’, IEEE Commun. Lett., 2011, 15, (8), pp. 792–794 (doi: 10.1109/LCOMM.2011.061611.110960).
6. 6)
  - 3. Dai, L.: ‘An uplink capacity analysis of the distributed antenna system (DAS): from cellular DAS to DAS with virtual cells’, IEEE Trans. Wirel. Commun., 2014, 13, (5), pp. 2717–2731 (doi: 10.1109/TWC.2014.033114.130557).
7. 7)
  - 6. Andrews, J.G., Baccelli, F., Ganti, R.K.: ‘A tractable approach to coverage and rate in cellular networks’, IEEE Trans. Commun., 2011, 59, (11), pp. 3122–3134 (doi: 10.1109/TCOMM.2011.100411.100541).
8. 8)
  - 1. Heath, R., Peters, S., Wang, Y., Zhang, J.: ‘A current perspective on distributed antenna systems for the downlink of cellular systems’, IEEE Commun. Mag., 2013, 51, (4), pp. 161–167 (doi: 10.1109/MCOM.2013.6495775).
9. 9)
  - 23. Onireti, O., Heliot, F., Imran, M.: ‘On the energy efficiency-spectral efficiency trade-off of distributed MIMO systems’, IEEE Trans. Commun., 2013, 61, (9), pp. 3741–3753 (doi: 10.1109/TCOMM.2013.071813.120823).
10. 10)
  - 4. Lin, Y., Yu, W.: ‘Downlink spectral efficiency of distributed antenna systems under a stochastic model’, IEEE Trans. Wirel. Commun., 2014, 13, (12), pp. 6891–6902 (doi: 10.1109/TWC.2014.2352259).

Co-channel interference analysis of large-scale distributed antenna systems with virtual cells

References

Related content