Boon and bane of 60 GHz networks

Zero Overhead Device Tracking in 60 GHz Wireless Networks using Multi-Lobe Beam Patterns

“…Networking Simulation Tool: Experimental evaluation of networking in the mmWave band is extremely costly, and available hardware has minimal capabilities [5].…”

“…Assuming idealized sector shapes, the IEEE 802.11ad standard specifies clients to periodically transmit sector sweep messages of each available to cover all possible directions. However, the shape of the underlying beam patterns generated by commodity hardware is highly imperfect [2,5] and thus is hard to map sectors and angular directions. This has also been noted in prior work [89,93], which declare such imperfections as noise and resort to filter them out to create a sparse representation of the channel.…”

“…5 shows that using a large TCP buffer for high contention scenarios improves the total aggregated throughput. A large buffer masks the channel changes which are more frequent in the 60 GHz band but this comes at the expense of increasing the RTT as can be seen inFigure 6.6.…”

“…5 we analyze whether the behavior of our waiting policy is suitable for such a trial-and-error approach. Moreover, we show that the above fitting approach performs well, too, yielding good Sum of Squared Errors (SSE) values when comparing our estimation to the actual performance.…”

“…1..200] in steps of 20 packets, and T s ∈ [0..2] ms in steps of 100 µs. Further, we consider N ∈[5,10,15] STAs.Figure 5.3 depicts the medium usage for different packet thresholds P s and time thresholds T s for the case of 15 STAs. The black dot at P s = 1 and T s = 0 is the baseline, since with these parameters a STA does not introduce any artificial delay and transmits as soon as it has at least one packet.…”