Editing Medium access control (section)

=== Channel access control mechanism for concurrent transmission ===
Use of directional antennas and [[millimeter-wave]] communication in a [[wireless personal area network]] increases the probability of concurrent scheduling of non‐interfering transmissions in a localized area, which results in an immense increase in network throughput. However, the optimum scheduling of concurrent transmission is an [[NP-hardness|NP-hard problem]].<ref>{{cite journal|author=Bilal, Muhammad|display-authors=etal|title=Time-Slotted Scheduling Schemes for Multi-hop Concurrent Transmission in WPANs with Directional Antenna|journal=ETRI Journal |volume=36|issue=3|pages=374–384|arxiv=1801.06018|doi=10.4218/etrij.14.0113.0703|year=2014}}</ref>