COBA: Concurrent Bandwidth Aggregation - A Case Study in Parallel Wireless Communications
Parallel wireless communications is an emerging area of research. In this paper, concurrent bandwidth aggregation techniques were explored to dynamically exploit performance diversity and concurrent utilization over multiple wireless networks at a given location and time. In general, various aggregation techniques including heterogeneous concurrent wireless bandwidth aggregation and aggregation across multiple carriers or multiple cells have been discussed. Application-layer aggregation is possible and this requires custom application servers to be modified for aggregation support. Aggregation below the IP layer, including those using multi-link techniques with flow control requires access strata changes and can offer robust performance against time varying wireless channel and loading conditions.