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"l o EA -- 'r o . lfrEo1F _ tr _ ^l^'H + Axil4s=- +dE+ + elq. .cE= ul: 9ql^l gug-a;=eE d+9tr1. . ]rgq !.*g -f l-= qlq ;il6Jq7 4= g aJ9 "lz.lzl ?*=q. . ool dnl= alq6}= *))71 Bl zl q Eq *tlfl"l +q^l= E xI zI C 7Jq. . ^X'J g'& Eq 5C 4q= +s ulE zJ 4lq. '+detlg *A) 'J + ?Itr}. . +g ,I E tlil l* ql 9al] ^l .Hqs "l gr+. . tzl +gEL u}"l4l . Ezlql 9 a]] +E zlrs E Prl ilE6t = ae zt+6}q. ix'J g'& E9 Ea14l q= +E 4qtzlTI 6I oJq. +dE+g *al 7c ++il4 +s slq tlil$ ldt e ^l^HElS"l €4. +s qlel r+= tilE az}"l4E ^l4tstrl$ "l gq. Ezl ol A+ql = +gE, ulolsN"- 5 zlql 9at BBr.te_e +El il+6}ts 4P1 zlts- +oJA-zl7l E =Edga + 4q+q t"Jzl 4lq 714+ alzl c+ilq. +%ItI^l7l a^J9 I e zf, 4 + .,.1 4H ulS"l str}. " -4.+tll Hl-\l o --1 CSMA/CD tr _ = E+ TDMA tr= TDMA d+ ull nl E+zI olE E+ zil "lB qqd *d+ al"lB E+ 21"19 qqd +c+ fll"lB qqc +C+ zI"lB 78 I112:l CAD/CAMAI'-'J9 6l'=?llGl E _ 2-13 LilE+.la +d "J^loll E+= E+ "J =8 (2) "l,rl4 zi q *^l d€= "l'Jg.l,qJ:alzl gallrl -E= 717l= d+Ellil 4lq str.E="] a"I"I *4. "l E _ tr _ E=e tr}+q uile.9l.z "JElqlol4 +qE(NtS)zI E^lql ol,!llaNE E^ld"l gt "l 6il 4* + ll9 "t +tr}. Celoue' ol *4e ol$zlz| qlaE €EIs EilolEl= d+6IE+ 6I+= rl ACK rlaz| +4zlE+El +dg+tr +c+e qq+ +=E gq+zl e+= 4_etr- ql ^l6}q, +H +=E ?1611 yl4"l +rlq= a+ql= +tl+e tr}^l d+6171 +lal ts+a ^lt"JE 7lE+ao} +q. @ Slotted ALOHA : ol tsJ.lg 6J qlaq d*rl zJ zz)41 ElAl6I= tlzf zfl9tr- = *(srot)9 4?l +d+e "l =*q ^lzldql^l d+9 rlzlatl"t +tr}. "J"J F z1l9 vl4"l +5+ qlqlE:. y]]7)=Z tn +84"J atr4= +d{ 4 a +qlql^-l +c6lE-tr ALOHA "J^]trtrI:z rdts"l *f;I4_z + + iltr}. @ CSnAA(Carrier Sense Multiple Access) : ol EJ4g yETl;]]'Jel t4= +^l 6lq +=g qg + gl4. "J"J trI= d*"1 tl;J6"lE:.== frs;tl,J"l ga€ 4lr4zl r d+€- gzl+r}. @ csua/co : ol Et}tsl t-=- 7+ zlzlgol E"J6Ial a#q= E+E E4q ea"il