@techreport{oai:ipsj.ixsq.nii.ac.jp:02009663,
 author = {草野,直人 and 柏崎,礼生 and Naoto Kusano and Hiroki Kashiwazaki},
 issue = {18},
 month = {May},
 note = {IEEE 802.11ahは，IoT向けに長距離化，多数端末収容，省電力化を実現する無線LAN規格として期待されている．一方，sub-1 GHz帯特有の帯域制約や競合制御，さらに各国制度に基づく送信時間制約の影響を受けるため，TCP/IP通信における上位層性能の把握が重要となる．IEEE 802.11ah環境において，TCP輻輳制御アルゴリズムおよび送受信最大バッファサイズが通信性能に与える影響を，CUBIC，Reno，BBRを対象に実機評価した．その結果，CUBICおよびRenoはバッファサイズ拡大によりスループットが向上する一方，RTTの増大が顕著であった．BBRはRTTを低く抑制したが，スループット向上は限定的であった．以上より，用途に応じたTCP設定の選択が重要である．, IEEE 802.11ah is expected to serve as a wireless LAN standard for IoT applications by enabling extended communication range, support for a large number of devices, and improved energy efficiency. However, because it is affected by bandwidth limitations and contention control specific to the sub-1 GHz band, as well as transmission-time restrictions imposed by national regulations, it is important to understand upper-layer performance in TCP/IP communications. The effects of TCP congestion control algorithms and maximum send/receive buffer sizes on communication performance in an IEEE 802.11ah environment were experimentally evaluated using CUBIC, Reno, and BBR. The results showed that CUBIC and Reno improved throughput as the buffer size increased, while exhibiting a significant increase in RTT. In contrast, BBR maintained a low RTT, but its throughput improvement was limited. These results suggest that application-aware selection of TCP settings is essential in IEEE 802.11ah environments.},
 title = {IEEE 802.11ah環境におけるTCP輻輳制御アルゴリズムの性能評価},
 year = {2026}
}