1．無(wú)線信道...................................................................1
1．1自由空間無(wú)線電波傳播..................................................................................................1
1．2移動(dòng)通信的電波傳播特點(diǎn)..............................................................................................1
1．3移動(dòng)通信電波傳播特性..................................................................................................2
1．3．1短期（快）衰落................................................................................................3
1．3．2長(zhǎng)期（慢）衰落................................................................................................6
1．3．3衰落特性............................................................................................................6
1．4電波傳播損耗預(yù)測(cè)模型..................................................................................................6
1．4．1 Okumura-Hata模型............................................................................................7
1．4．2 COST231 Walfisch-Ikegami模型......................................................................9
1．5覆蓋設(shè)計(jì)........................................................................................................................10
1．5．1傳播模型的選用及修正..................................................................................11
1．5．1基站覆蓋預(yù)測(cè)..................................................................................................11
1．5．3功率控制..........................................................................................................14