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Estimation-Based Fair MAC [Bansou00MobiHoc] Attempts to equalize throughput/weight ratio for all nodes Two parts of the algorithm Fair share estimation Window adjustment Each node estimates how much bandwidth (W) it is able to use, and the amount of bandwidth used by each station in its vicinity Estimation based on overheard RTS, CTS, DATA packets 296
Estimation-Based Fair MAC Fair share estimation: Node estimates how much bandwidth (Wi) it is able to use, and the amount of bandwidth (Wo) used by by all other neighbors combined Estimation based on overheard RTS, CTS, DATA packets 297
- Page 245 and 246: Geocast LAR If all routes between
- Page 247 and 248: Anycasting with Modified TORA [Ko20
- Page 249 and 250: DAG for Anycasting Since links bet
- Page 251 and 252: Geocasting using Modified Anycastin
- Page 253 and 254: Other Geocasting Schemes [Macwan01
- Page 255 and 256: Some Related Work Content-based Mu
- Page 257 and 258: Capacity of Fixed Ad Hoc Networks [
- Page 259 and 260: Continues from last slide … Dela
- Page 261 and 262: Measured Scaling Law [Gupta01] Mea
- Page 263 and 264: Medium Access Control Protocols 263
- Page 265 and 266: Hidden Terminal Problem Node B can
- Page 267 and 268: Reliability Wireless links are pro
- Page 269 and 270: IEEE 802.11 Wireless MAC Distribut
- Page 271 and 272: Collision Avoidance With half-dupl
- Page 273 and 274: B1 = 25 B2 = 20 cw = 31 DCF Example
- Page 275 and 276: MAC Protocols: Issues Hidden Termi
- Page 277 and 278: Binary Exponential Backoff in DCF
- Page 279 and 280: IEEE 802.11 Distributed Coordinatio
- Page 281 and 282: Fairness Issue Assume that initial
- Page 283 and 284: MACAW Solution for Fairness When a
- Page 285 and 286: Distributed Fair Scheduling (DFS) [
- Page 287 and 288: Impact of Collisions After collisi
- Page 289 and 290: Distributed Fair Scheduling DFS us
- Page 291 and 292: Fairness in Multi-Hop Networks Not
- Page 293 and 294: Balanced MAC degree of node j p_ij
- Page 295: Balanced MAC Results show that it
- Page 299 and 300: Proportional Fair Contention Resolu
- Page 301 and 302: Sender-Initiated Protocols The pro
- Page 303 and 304: Using Receiver’s Help in a Sender
- Page 305 and 306: Receiver-Based Adaptive Rate Contro
- Page 307 and 308: Capacity and MAC Protocols The MAC
- Page 309 and 310: Energy Conserving MAC Since many m
- Page 311 and 312: A Power Aware Multi-Access Protocol
- Page 313 and 314: PAMAS PAMAS uses a control channel
- Page 315 and 316: Another Proposal in PAMAS To avoid
- Page 317 and 318: UDP on Mobile Ad Hoc Networks 317
- Page 319 and 320: UDP Performance Several relevant s
- Page 321 and 322: UDP Performance Difficult to ident
- Page 323 and 324: Overview of Transmission Control Pr
- Page 325 and 326: Transmission Control Protocol (TCP)
- Page 327 and 328: Cumulative Acknowledgements A new
- Page 329 and 330: Window Based Flow Control Sliding
- Page 331 and 332: Window Based Flow Control Congesti
- Page 333 and 334: How does TCP detect a packet loss?
- Page 335 and 336: Retransmission Timeout (RTO) calcul
- Page 337 and 338: Fast Retransmission Timeouts can t
- Page 339 and 340: Congestion Avoidance and Control S
- Page 341 and 342: Congestion Control On detecting a
- Page 343 and 344: Congestion window (segments) 25 20
- Page 345 and 346: ssthresh = Fast Recovery min(cwnd,
Estimation-Based Fair MAC<br />
Fair share estimation: Node estimates how much<br />
bandwidth (Wi) it is able to use, and the amount of<br />
bandwidth (Wo) used by by all other neighbors<br />
combined<br />
Estimation based on overheard RTS, CTS, DATA packets<br />
297
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